Atomic radius _moving from left to right across a period?

Atomic radius _moving from left to right across a period?
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In the periodic table of elements, on moving from left to right across a period, the atomic radius – (1) decreases (2) increases (3) remains unchanged (4) does not follow a definite pattern

Description : In the periodic table of elements, on moving from left to right across a period, the atomic radius – (1) decreases (2) increases (3) remains unchanged (4) does not follow a definite pattern

Last Answer : (1) decreases Explanation: The atomic radius is the distance from the atomic nucleus to the outermost stable electron orbital in an atom that is at equilibrium. It tends to decrease across a period from ... usually increases while going down a group due to the addition of a new energy level (shell).

In the periodic table of elements, on moving from left to right across a period, the atomic radius (1) decreases (2) increases (3) remains unchanged (4) does not follow a definite pattern

Description : In the periodic table of elements, on moving from left to right across a period, the atomic radius (1) decreases (2) increases (3) remains unchanged (4) does not follow a definite pattern

Last Answer : increases

Why does atomic size (radius) decrease across a period?

Description : Why does atomic size (radius) decrease across a period?

Last Answer : The atomic radius decreases along a period because the atomic number increases by one, but the additional electron goes to the same shell.There is no change in the number of shells but more ... in closer to the nucleus which leads to contraction of the atom and thus decrease in atomic size

As one goes across a period in the periodic table, the ionization energy generally increases for one of the following reasons. Is it because of the increasing w) atomic radius x) melting point y) nuclear charge z) density

Description : As one goes across a period in the periodic table, the ionization energy generally increases for one of the following reasons. Is it because of the increasing w) atomic radius x) melting point y) nuclear charge z) density

Last Answer : ANSWER: Y -- NUCLEAR CHARGE

a) What is meant by periodicity in properties of elements with reference to the periodic table? (b) Why do all the elements of the same group have similar properties? (c) How will the tendency to gain electrons change as we go from left to right across a period? Why? -Science

Description : a) What is meant by periodicity in properties of elements with reference to the periodic table? (b) Why do all the elements of the same group have similar properties? (c) How will the tendency to gain electrons change as we go from left to right across a period? Why? -Science

Last Answer : (a) The repetition of same properties after definite interval is called periodicity in properties. (b) It is because they have same valence electrons therefore, have similar properties. (c) ... to right in a period because atomic size goes on decreasing and effective nuclear charge increases.

In general, as you move across a period (left to right) electronegativity: w) increases x) decreases y) remains the same z) increases or decreases

Description : In general, as you move across a period (left to right) electronegativity: w) increases x) decreases y) remains the same z) increases or decreases

Last Answer : ANSWER: W -- INCREASES

What is the element in period 4 with the smallest atomic radius?

Description : What is the element in period 4 with the smallest atomic radius?

Last Answer : What is the noble gas element with the largest radius

Among the elements of the 3rd period from Na to Ar, pick out the element: (L-2) (a). with highest first ionization enthalpy. (b). with largest atomic radius. (c). that is most reactive non-metal. (d). that is most reactive metal.

Description : Among the elements of the 3rd period from Na to Ar, pick out the element: (L-2) (a). with highest first ionization enthalpy. (b). with largest atomic radius. (c). that is most reactive non-metal. (d). that is most reactive metal.

Last Answer : (a). Ar has highest first ionization enthalpy. (b). Na has large atomic radius (covalent radius). (c). Cl is more reactive non-metal in 3rd period. (d). Na is most reactive metal in third period.

How the atomic size vary in a group and across a period? Explain with suitable example.

Description : How the atomic size vary in a group and across a period? Explain with suitable example.

Last Answer : How the atomic size vary in a group and across a period? Explain with suitable example.

Proceeding across a period in the Periodic Table, what atomic size trend is observed?

Description : Proceeding across a period in the Periodic Table, what atomic size trend is observed?

Last Answer : ANSWER: ATOMIC SIZE DECREASES

Which of the following is a correct pair according to increasing atomic number from left to right? (1) Ca, Cl (2) Be, B (3) Na, Ne (4) He, H

Description : Which of the following is a correct pair according to increasing atomic number from left to right? (1) Ca, Cl (2) Be, B (3) Na, Ne (4) He, H

Last Answer : (2) Be, B Explanation: The correct pair is Be and B. Beryllium (Be) has atomic number of 4, while the atomic number of Boron (2) is 5.

Horn clauses are special kinds of propositions which can be described as (A) Single atomic proposition on left side. (B) Single or multiple atomic proposition on left side. (C) A single atomic proposition on left side and a single atomic proposition on right side. (D) A single atomic proposition on left side or an empty left side.

Description : Horn clauses are special kinds of propositions which can be described as (A) Single atomic proposition on left side. (B) Single or multiple atomic proposition on left side. (C) A single atomic ... proposition on right side. (D) A single atomic proposition on left side or an empty left side.

Last Answer : (D) A single atomic proposition on left side or an empty left side.

The electron beam in a CRT is made to sweep from left to right across the screen. What tube element causes this sweeping motion?

Description : The electron beam in a CRT is made to sweep from left to right across the screen. What tube element causes this sweeping motion?

Last Answer : The horizontal-deflection plate.

A semi permeable membrane is stretched across a chamber filled with water. The membrane is only permeable to water. 60 mg of salt is added to the left side of the chamber. Which of the following will happen? (A) Water will move toward the right side (B) salt will move toward the right side (C) Water will move toward the left side (D) salt will move toward the left side

Description : A semi permeable membrane is stretched across a chamber filled with water. The membrane is only permeable to water. 60 mg of salt is added to the left side of the chamber. Which of the following will ... right side (C) Water will move toward the left side (D) salt will move toward the left side

Last Answer : (C) Water will move toward the left side

Atomic radius of sodium 1.8 amstrong "..... How to determine this value ?

Description : Atomic radius of sodium 1.8 amstrong "..... How to determine this value ?

Last Answer : To determine the value, that is, to take the meter, you have to multiply it by 10 ^ -10 . (1.6 * 10 ^ - 10)

What is Atomic Radius ?

Description : What is Atomic Radius ?

Last Answer : Atomic radius measures the distance of the outer electron cell from the nucleus of the atom.

Calculate the drift velocity for the electrons in a silver wire which has a radius of 0.1 cm and carries a current of 2 A. Atomic mass of silver=108 a

Description : Calculate the drift velocity for the electrons in a silver wire which has a radius of 0.1 cm and carries a current of 2 A. Atomic mass of silver=108 a

Last Answer : Calculate the drift velocity for the electrons in a silver wire which has a radius of 0.1 cm and carries a ... silver `=10.5xx10^(3) kg//m^(3)`.

A beam of ultraviolet radius hacking wavelength between `100nm and 200nm` is inclined on a sample of atomic hydrogen gas. Assuming that the atoms are

Description : A beam of ultraviolet radius hacking wavelength between `100nm and 200nm` is inclined on a sample of atomic hydrogen gas. Assuming that the atoms are

Last Answer : A beam of ultraviolet radius hacking wavelength between `100nm and 200nm` is inclined on a sample of ... being observed by on atom in the ground state

What shell will determine the atomic radius of carbon?

Description : What shell will determine the atomic radius of carbon?

Last Answer : Feel Free to Answer

The cause of periodicity of properties (a) Increasing atomic radius (b) Increasing atomic weights (c) Number of electrons in the valency orbit (d) The recurrence of similar outer electronic configuration

Description : The cause of periodicity of properties (a) Increasing atomic radius (b) Increasing atomic weights (c) Number of electrons in the valency orbit (d) The recurrence of similar outer electronic configuration

Last Answer : Ans:(d)

Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has – (1) high bond dissociation energy (2) smaller atomic radius (3) stable half filled 2p sub level (4) high nuclear charge

Description : Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has – (1) high bond dissociation energy (2) smaller atomic radius (3) stable half filled 2p sub level (4) high nuclear charge

Last Answer : (3) stable half filled 2p sub level Explanation: Ionization energy is a measure of the ease in which atoms lose electrons and become positive ions.

Atomic size refers to the ______ of an atom. (1) Radius (2) Circumference (3) Diameter (4) Centre

Description : Atomic size refers to the ______ of an atom. (1) Radius (2) Circumference (3) Diameter (4) Centre

Last Answer : (1) Radius Explanation: The term atomic size refers to the radius of an atom. The atomic size may be visualized as the distance between the centre of the nucleus and the outermost shell of an isolated atom.

Pick out the correct statement. (A) Loss of electrons from neutral atoms produces negative ions (B) The radius of nucleus & atomic size are of the order of 10 -12 cm & 10 - 8 cm respectively (C) Gain of electrons by neutral atoms form cations

Description : Pick out the correct statement. (A) Loss of electrons from neutral atoms produces negative ions (B) The radius of nucleus & atomic size are of the order of 10 -12 cm & 10 - 8 cm respectively (C) Gain of electrons by neutral atoms form cations

Last Answer : (B) The radius of nucleus & atomic size are of the order of 10 -12 cm & 10 - 8 cm respectivel

The ratio of atomic radius to its nuclear radius is about (A) 10 5 (B) 10 8 (C) 10 12 (D) 10 15

Description : The ratio of atomic radius to its nuclear radius is about (A) 10 5 (B) 10 8 (C) 10 12 (D) 10 15

Last Answer : (A) 10

The repetition of property after a certain interval called ------? A. Electron efinity B. Atomic radius C. periodicity of property (Answer) D. none of these

Description : The repetition of property after a certain interval called ------? A. Electron efinity B. Atomic radius C. periodicity of property (Answer) D. none of these

Last Answer : C. periodicity of property (Answer)

Atomic __________ is a whole number for an element. (A) Number (B) Weight (C) Radius (D) None of these

Description : Atomic __________ is a whole number for an element. (A) Number (B) Weight (C) Radius (D) None of these

Last Answer : (A) Number

Atomic __________ of an element is a whole number. (A) Weight (B) Number (C) Volume (D) Radius

Description : Atomic __________ of an element is a whole number. (A) Weight (B) Number (C) Volume (D) Radius

Last Answer : (B) Number

Which of the following has the smallest atomic radius? w) iodine x) chlorine y) fluorine z) bromine

Description : Which of the following has the smallest atomic radius? w) iodine x) chlorine y) fluorine z) bromine

Last Answer : ANSWER: Y -- FLUORINE

Of the following elements which has the largest atomic radius? w) Ba x) F y) C z) Be

Description : Of the following elements which has the largest atomic radius? w) Ba x) F y) C z) Be

Last Answer : ANSWER: W -- Ba

Which of the following four elements has the largest atomic radius? Is it: w) strontium x) francium y) calcium z) bromine

Description : Which of the following four elements has the largest atomic radius? Is it: w) strontium x) francium y) calcium z) bromine

Last Answer : ANSWER: X -- FRANCIUM

Which halogen has the largest atomic radius:

Description : Which halogen has the largest atomic radius:  

Last Answer : ANSWER: ASTATINE

The halogen with the largest atomic radius is: w) Cl x) I y) Br z) At

Description : The halogen with the largest atomic radius is: w) Cl x) I y) Br z) At

Last Answer : ANSWER: Z -- At

Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has (1) high bond dissociation energy (2) smaller atomic radius (3) stable half filled 2p sub level (4) high nuclear charge

Description : Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has (1) high bond dissociation energy (2) smaller atomic radius (3) stable half filled 2p sub level (4) high nuclear charge

Last Answer : stable half filled 2p sub level

Shear stress in a fluid flowing in a round pipe (A) Varies parabolically across the cross-section(B) Remains constant over the cross-section(C) Is zero at the centre and varies linearly with the radius(D) Is zero at the wall and increases linearly to the centre

Description : Shear stress in a fluid flowing in a round pipe (A) Varies parabolically across the cross-section (B) Remains constant over the cross-section (C) Is zero at the centre and varies linearly with the radius (D) Is zero at the wall and increases linearly to the centre

Last Answer : (C) Is zero at the centre and varies linearly with the radius

Applying a pressure drop across a capillary results in a volumetric flow rate 'Q' under laminar flow conditions. The flow rate for the same pressure drop, in a capillary of the same length but half the radius is (A) Q/2 (B) Q/4 (C) Q/8 (D) Q/16

Description : Applying a pressure drop across a capillary results in a volumetric flow rate 'Q' under laminar flow conditions. The flow rate for the same pressure drop, in a capillary of the same length but half the radius is (A) Q/2 (B) Q/4 (C) Q/8 (D) Q/16

Last Answer : (D) Q/16

In an ideal tubular-flow reactor (A) There is no mixing in longitudinal direction (B) Mixing takes place in radial direction (C) There is a uniform velocity across the radius (D) All (A), (B) and (C)

Description : In an ideal tubular-flow reactor (A) There is no mixing in longitudinal direction (B) Mixing takes place in radial direction (C) There is a uniform velocity across the radius (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Heat flow across a hollow sphere of inner radius 'r1' and outer radius 'r2' is directly proportional to (A) (r2- r1)/r1. r2 (B) r1. r2/(r2- r1) (C) (r2 + r1)/r1. r2 (D) r1. r2/(r2 + r1)

Description : Heat flow across a hollow sphere of inner radius 'r1' and outer radius 'r2' is directly proportional to (A) (r2- r1)/r1. r2 (B) r1. r2/(r2- r1) (C) (r2 + r1)/r1. r2 (D) r1. r2/(r2 + r1)

Last Answer : (B) r1. r2/(r2- r1)

Choose the correct statement. (a) Electronegativity increases down a group (b) Electronegativity decreases down a group (c) Electronegativity decreases from left to right along a period (d) Electronegativity changes along a group, but remains constant along a period

Description : Choose the correct statement. (a) Electronegativity increases down a group (b) Electronegativity decreases down a group (c) Electronegativity decreases from left to right along a period (d) Electronegativity changes along a group, but remains constant along a period

Last Answer : Ans:(b)

How does electro negativity vary down the group 17 and why? How does it vary from left to right in the period? Name an element having highest electro negativity.

Description : How does electro negativity vary down the group 17 and why? How does it vary from left to right in the period? Name an element having highest electro negativity.

Last Answer : Ans. Electro negativity decreases down the group due to increase in atomic size. It increases along the period from left to right due to decrease in atomic size. Fluorine (F) has highest electro negativity.

In CNC machining tool radius compensation turning the left mode ON programming contourdone by a.G40 b.G41 c.G42 d.G43

Description : In CNC machining tool radius compensation turning the left mode ON programming contourdone by a.G40 b.G41 c.G42 d.G43

Last Answer : b.G41

A satellite of Jupiter has a period of 1.77 day and orbital radius of `4.22xx10^(8)m`. Find the mass of Jupiter.

Description : A satellite of Jupiter has a period of 1.77 day and orbital radius of `4.22xx10^(8)m`. Find the mass of Jupiter.

Last Answer : A satellite of Jupiter has a period of 1.77 day and orbital radius of `4.22xx10^(8)m`. Find the mass of Jupiter.

Square of orbital period is proportional to A. radius B. square of radius C. cube of radius D. square of diameter

Description : Square of orbital period is proportional to A. radius B. square of radius C. cube of radius D. square of diameter

Last Answer : cube of radius

The period of revolution of a certain planet in an orbit of radius R is T. Its period of revolution in an orbit of radius 4R will be:

Description : The period of revolution of a certain planet in an orbit of radius R is T. Its period of revolution in an orbit of radius 4R will be:

Last Answer : 8 T

"If a deadly plague swept across the globe and you and ONLY ten other people were the only ones left alive, who would who want to have in that group of 10 individuals?

Description : "If a deadly plague swept across the globe and you and ONLY ten other people were the only ones left alive, who would who want to have in that group of 10 individuals?

Last Answer : In no particular order: Colon Powell (leadership) Barack Obama (morale) Leslie Fang (my doctor) Giada DeLaurentis (gotta eat) Isla Fisher & Amy Adams (ahem) David Sedaris & Paula Poundstone (great stories) Norm Abrahms (handy) Prince (entertainment)

There was a farmer making his way to the market with a fox, a chicken, and some grain. He came to a clearing with a stream. He saw a boat nearby, but he could only take one of his items with him. He knew if he took the grain, and left the fox and chicken, the fox would eat the chicken., and if he took the fox, the chicken would eat the grain. How do you get all of them across? -Riddles

Description : There was a farmer making his way to the market with a fox, a chicken, and some grain. He came to a clearing with a stream. He saw a boat nearby, but he could only take one of his items with him. ... and if he took the fox, the chicken would eat the grain. How do you get all of them across? -Riddles

Last Answer : You take the chicken across, and then go back for the fox. While you are dropping off the fox, take the chicken back, and then get the grain, and take it across. Then go back and get the chicken. Share this with your friends!

If Chris Bromham took off on his Yamaha and jumped a horizontal distance of 74.0 m across a row of cars and assuming that he started and landed at the same level and was airborne for 1.3 s, what was his initial (angled) velocity as he left the ground?

Description : If Chris Bromham took off on his Yamaha and jumped a horizontal distance of 74.0 m across a row of cars and assuming that he started and landed at the same level and was airborne for 1.3 s, what was his initial (angled) velocity as he left the ground?

Last Answer : I really need help. If someone can explain this to me, it'll be great!

In a wide interesection with the turn lanes offset not straight across from each other when I am turning left and an oncoming car is turning left do we turn in front or behind each other?

Description : In a wide interesection with the turn lanes offset not straight across from each other when I am turning left and an oncoming car is turning left do we turn in front or behind each other?

Last Answer : You would turn in front of each other. If you try to take theturn behind the car, your path could be blocked by cars heading inthe same direction as the other car.

If a heavy object if pushed or pulled across the room how could it affect the fingerprint left on the object?

Description : If a heavy object if pushed or pulled across the room how could it affect the fingerprint left on the object?

Last Answer : Assuming the fingers are in contact to push or pull the object, the amount of pressure put on the fingers to move an object would increase with the weight of the object. This results because friction ... of our hands if we are moving heavy objects; so the fingers might not even touch the object.

You have been intercepted in the airspace of a foreign contracting state. What is the signal for ‘clear to proceed’ from the intercepting aircraft? a. Rocking wings b. Flashing lights c. Cut across track d. Breaking turn up and left

Description : You have been intercepted in the airspace of a foreign contracting state. What is the signal for ‘clear to proceed’ from the intercepting aircraft? a. Rocking wings b. Flashing lights c. Cut across track d. Breaking turn up and left

Last Answer : d. Breaking turn up and left

You have been intercepted in the airspace of a foreign contracting state. What is the signal for ‘clear to proceed’ from the intercepting aircraft? a. Rocking wings b. Flashing lights c. Cut across track d. Breaking turn up and left

Description : You have been intercepted in the airspace of a foreign contracting state. What is the signal for ‘clear to proceed’ from the intercepting aircraft? a. Rocking wings b. Flashing lights c. Cut across track d. Breaking turn up and left

Last Answer : d. Breaking turn up and left