The natural element having highest atomic weight?

The natural element having highest
atomic weight?
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1 Answer

Answer :

Uranium
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Related questions

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.

The element with the minimum atomic number having 8 electrons in the outer most shell is what?

Description : The element with the minimum atomic number having 8 electrons in the outer most shell is what?

Last Answer : Answer: Neon.

Atoms of the same element having same atomic number and different mass number are known as?

Description : Atoms of the same element having same atomic number and different mass number are known as?

Last Answer : Isotopes

Is it possible to have an element having atomic number 1.5?

Description : Is it possible to have an element having atomic number 1.5?

Last Answer : Atomic number is always a whole number. It can either be 1 or 2. There can be no element with atomic number 1.5

The atomic masses of three elements X, Y and Z having similar chemical properties are 7, 23 and 39 respectively. a) Calculate the average atomic mass of elements X and Z. b) How is the average atomic mass of elements X and Z compare with the atomic mass of element Y? c) Which law of classification of elements is illustrated by this example? d) Give another example of a set of elements which are classified according to this law.

Description : The atomic masses of three elements X, Y and Z having similar chemical properties are 7, 23 and 39 respectively. a) Calculate the average atomic mass of elements X and Z. b) How is the ... this example? d) Give another example of a set of elements which are classified according to this law.

Last Answer : a) The average atomic mass of X and Z = 7 39 2 46 2 23 b) The average atomic mass of X and Z is equal to the atomic mass of Y c) The law illustrated in this example is Dobereiner’s law of triads. d) Another example of Dobereiner’s law is Calcium, Strontium and Barium.

The umber of neutrons present in an element having mass number 226 and atomic number 88 is– (1) 88 (2) 138 (3) 314 (4) 50

Description : The umber of neutrons present in an element having mass number 226 and atomic number 88 is– (1) 88 (2) 138 (3) 314 (4) 50

Last Answer : (2) 138 Explanation: The mass number is a count of the number of particles in an atom's nucleus which is made up of protons and neutrons. In other words, Mass Number = Number of Protons + Number of Neutrons. ... of an element, 226 = 88 + number of Neutrons. So, the number of neutrons= 226 - 88= 138.

Element having atomic number 29 is related to –

Description : Element having atomic number 29 is related to –

Last Answer : D-Block

The ratio of neutrons to protons of an element having a mass number and atomic number of 80 and 40 respectively is (A) 1 (B) 0.5 (C) 2 (D) 4

Description : The ratio of neutrons to protons of an element having a mass number and atomic number of 80 and 40 respectively is (A) 1 (B) 0.5 (C) 2 (D) 4

Last Answer : (A) 1

The number of neutrons present in an element having mass number 226 and atomic number 88 is : (1) 88 (2) 138 (3) 314 (4) 50

Description : The number of neutrons present in an element having mass number 226 and atomic number 88 is : (1) 88 (2) 138 (3) 314 (4) 50

Last Answer : 138

Atomic number of an element gives (a) The number of protons in its atom (b) The number of nucleons in its atom (c) The weight of the atom of the element (d) The total number of elementary particles in its atom

Description : Atomic number of an element gives (a) The number of protons in its atom (b) The number of nucleons in its atom (c) The weight of the atom of the element (d) The total number of elementary particles in its atom

Last Answer : Ans:(a)

`3.011 xx 10^(22)` atoms of an element weight 1.15 g. The atomic mass of the element is :-

Description : `3.011 xx 10^(22)` atoms of an element weight 1.15 g. The atomic mass of the element is :-

Last Answer : `3.011 xx 10^(22)` atoms of an element weight 1.15 g. The atomic mass of the element is :- A. 10 amu B. 2.3 amu C. 35.5 amu D. 23 amu

Dentification: Atoms of the same element but with various atomic weight?

Description : Dentification: Atoms of the same element but with various atomic weight?

Last Answer : Isotope

Dentification: Atoms of the same element but with various atomic weight?

Description : Dentification: Atoms of the same element but with various atomic weight?

Last Answer : Isotope

The atomic weight and atomic number of an element are A and Z respectively. What is the number of neutrons in the atom of that element? (A) A + Z (B) A - Z (C) A (D) Z

Description : The atomic weight and atomic number of an element are A and Z respectively. What is the number of neutrons in the atom of that element? (A) A + Z (B) A - Z (C) A (D) Z

Last Answer : (B) A - Z

The new nucleus formed after β-decay of a radioactive element has (A) Less atomic number (B) Less atomic weight (C) More atomic number (D) More atomic weight

Description : The new nucleus formed after β-decay of a radioactive element has (A) Less atomic number (B) Less atomic weight (C) More atomic number (D) More atomic weight

Last Answer : (A) Less atomic number

Isotopes of an element have the same (A) Number of neutrons (B) Mass number (C) Electronic configuration (D) Atomic weight

Description : Isotopes of an element have the same (A) Number of neutrons (B) Mass number (C) Electronic configuration (D) Atomic weight

Last Answer : (C) Electronic configuration

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 property of an element is always a whole number? [MP PMT 1986] (A) Atomic weight (B) Equivalent weight (C) Atomic number (D) Atomic volume

Description : Which property of an element is always a whole number? [MP PMT 1986] (A) Atomic weight (B) Equivalent weight (C) Atomic number (D) Atomic volume

Last Answer : (C) Atomic number

How many neutrons are present in the nucleus of an element with an atomic weight of 119 and an atomic number of 50?

Description : How many neutrons are present in the nucleus of an element with an atomic weight of 119 and an atomic number of 50? 

Last Answer : ANSWER: 69

Which natural element has the highest melting point?

Description : Which natural element has the highest melting point?

Last Answer : Tungsten

Element having the highest electronega- tivity?

Description : Element having the highest electronega- tivity?

Last Answer : Fluorine

Element having highest reactivity?

Description : Element having highest reactivity?

Last Answer : Fluorine

The element having the highest boiling point?

Description : The element having the highest boiling point?

Last Answer : Rhenium

The second element having highest reac- tivity?

Description : The second element having highest reac- tivity?

Last Answer : Chlorine

The element having highest reactivity or electro-negativity?

Description : The element having highest reactivity or electro-negativity?

Last Answer : Fluorine

The element having highest ionisation potential is

Description : The element having highest ionisation potential is

Last Answer : The element having highest ionisation potential is A. H B. N C. O D. He

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.

Deuterium differs from Hydrogen in having: A. Different atomic number but same atomic weight B. Different atomic number and different atomic weight C. Same atomic number and different atomic weight (Answer) D. None

Description : Deuterium differs from Hydrogen in having: A. Different atomic number but same atomic weight B. Different atomic number and different atomic weight C. Same atomic number and different atomic weight (Answer) D. None

Last Answer : C. Same atomic number and different atomic weight (Answer)

Two elemets `X(` atomic weight `=75)` and `Y(` atomic weight `=16)` combine to give a compound having `75.8%` X.` The formula of the compound is

Description : Two elemets `X(` atomic weight `=75)` and `Y(` atomic weight `=16)` combine to give a compound having `75.8%` X.` The formula of the compound is

Last Answer : Two elemets `X(` atomic weight `=75)` and `Y(` atomic weight `=16)` combine to give a compound having `75.8%` X.` ... C. `X_(2)Y_(2)` D. `X_(2)Y_(3)`

Two elemets `X(` atomic weight `=75)` and `Y(` atomic weight `=16)` combine to give a compound having `75.8%` X.` The formula of the compound is

Description : Two elemets `X(` atomic weight `=75)` and `Y(` atomic weight `=16)` combine to give a compound having `75.8%` X.` The formula of the compound is

Last Answer : Two elemets `X(` atomic weight `=75)` and `Y(` atomic weight `=16)` combine to give a compound having `75.8%` X. ... B. `xy_(2)` C. xy D. `x_(3)y_(3)`

An element X has a mass number 4 and atomic number 2. Write the valency of this element? -Science

Description : An element X has a mass number 4 and atomic number 2. Write the valency of this element? -Science

Last Answer : Mass number = 4 Atomic number = 2 X is Helium. It has 0 valency and it will not react with any other atom because it has its outer shell filled.

1The elements of the second period of the Periodic Table are given below: Li Be B C N O F (a) Give reason to explain why atomic radii decrease from Li to F. (b) Identify the most (i) metallic and (ii)non-metallic element. -Science

Description : 1The elements of the second period of the Periodic Table are given below: Li Be B C N O F (a) Give reason to explain why atomic radii decrease from Li to F. (b) Identify the most (i) metallic and (ii)non-metallic element. -Science

Last Answer : a) It is because nuclear charge increases due to increase in atomic number, therefore, force of attraction between nucleus and valence electrons increases, i.e. effective nuclear charge increases, hence ... element is ‘F’ because it can gain electrons easily due to smallest atomic size.

What is the atomic number of the element which has 3 electrons in its M shell?

Description : What is the atomic number of the element which has 3 electrons in its M shell?

Last Answer : Answer: 13.

An element with atomic number 36 belongs to the (a) s-block (b) p-block (c) d-block (d) f-block

Description : An element with atomic number 36 belongs to the (a) s-block (b) p-block (c) d-block (d) f-block

Last Answer : Ans:(b)

Which one of the following is the most characteristic property of an element? (a) Density (b) Boiling point (c) Mass number (d) Atomic number

Description : Which one of the following is the most characteristic property of an element? (a) Density (b) Boiling point (c) Mass number (d) Atomic number

Last Answer : Ans:(d)

The element with the least atomic size from Carbon, Nitrogen, Boron and Beryllium is

Description : The element with the least atomic size from Carbon, Nitrogen, Boron and Beryllium is

Last Answer : Nitrogen.

In a triad A, B and C, the atomic masses of A and B are 80 and 120 respectively. What is the atomic mass of element C?

Description : In a triad A, B and C, the atomic masses of A and B are 80 and 120 respectively. What is the atomic mass of element C?

Last Answer : Atomic mass of A=80 Atomic mass of B=120 A C 2 Atomic mass of B = 80 C 2 120x2 80 C 120 240 C 80 C 240 80 C 160

The immunoglobulin having highest molecular weight is (A) Ig G (B) Ig M (C) Ig E (D) Ig A MINERAL METABOLISM 187

Description : The immunoglobulin having highest molecular weight is (A) Ig G (B) Ig M (C) Ig E (D) Ig A MINERAL METABOLISM 187

Last Answer : Answer : B

If the atomic number of an element increases, then density will increase as well because...?

Description : If the atomic number of an element increases, then density will increase as well because...?

Last Answer : Not necessarily—(although generally so)—Lead (82) is less dense than Osmium (76) at STP. Mostly because, “it’s complicated” =)

An atom has atomic number 12, what is its valency and name the element? -Chemistry 9th

Description : An atom has atomic number 12, what is its valency and name the element? -Chemistry 9th

Last Answer : Element with atomic number 12 is Magnesium (Mg). Electronic configuration of magnesium is 1s2 2s2 2p6 3s2. It has 2 e- in its outermost orbit and can donate these to form a stable octet. Hence, its valency is +2.

104 The element with atomic number is named after which scientist ?

Last Answer : The 104th element is named after the scientist Rutherford.

For an element , if atomic number (Z) and mass number (A) are 29 and 63 respectively . Then the number of protons , neutrons and electrons respectivel

Description : For an element , if atomic number (Z) and mass number (A) are 29 and 63 respectively . Then the number of protons , neutrons and electrons respectivel

Last Answer : For an element , if atomic number (Z) and mass number (A) are 29 and 63 respectively . Then the number of protons ... C. 29 , 34 ,29 D. 29 , 29 , 29

The simplest formular of a compound containing 50% of element X (atomic mass 10) and 50% pf element Y (atomic mass 20) is :-

Description : The simplest formular of a compound containing 50% of element X (atomic mass 10) and 50% pf element Y (atomic mass 20) is :-

Last Answer : The simplest formular of a compound containing 50% of element X (atomic mass 10) and 50% pf element Y (atomic mass 20) ... C. `XY_(3)` D. `X_(2)Y_(3)`

(A) During `beta`-decay, a new element with atomic number greater than one is obtained. (R ) Protons and neutrons keep on changing into one another th

Description : (A) During `beta`-decay, a new element with atomic number greater than one is obtained. (R ) Protons and neutrons keep on changing into one another th

Last Answer : (A) During `beta`-decay, a new element with atomic number greater than one is obtained. (R ) Protons and ... D. If both (A) and (R ) are incorrect.

(A) During `beta`-decay, a new element with atomic number greater than one is obtained. (R ) Protons and neutrons keep on changing into one another th

Description : (A) During `beta`-decay, a new element with atomic number greater than one is obtained. (R ) Protons and neutrons keep on changing into one another th

Last Answer : (A) During `beta`-decay, a new element with atomic number greater than one is obtained. (R ) Protons and ... D. If both (A) and (R ) are incorrect.

A radioactive element `X` has an atomic number of 100. It decays directly into an element `Y` which decays directly into an element `Z`. In both the p

Description : A radioactive element `X` has an atomic number of 100. It decays directly into an element `Y` which decays directly into an element `Z`. In both the p

Last Answer : A radioactive element `X` has an atomic number of 100. It decays directly into an element `Y` which decays ... of 100 D. Z has an atomic number of 99

A radioactive element A on disintegration gives two elements B and C. If B is helium and C is the element of atomic number 90 and atomic mass 234, the

Description : A radioactive element A on disintegration gives two elements B and C. If B is helium and C is the element of atomic number 90 and atomic mass 234, the

Last Answer : A radioactive element A on disintegration gives two elements B and C. If B is helium and C is the element of atomic ... )^(234)Th` D. `._(91)^(234)Pa`

An element with atomic 25 lies in group 7, then the atomic number of element which also lies in the same group is

Description : An element with atomic 25 lies in group 7, then the atomic number of element which also lies in the same group is

Last Answer : An element with atomic 25 lies in group 7, then the atomic number of element which also lies in the same group is (A) 75 (B) 42 (C) 50 (D) 80

What is the group 14 element with the lowest atomic number?

Description : What is the group 14 element with the lowest atomic number?

Last Answer : This chemical element is carbon(C).