Description : What does the principal quantum number ‘n’ and azimuthal quantum number ‘l’ of an electron belonging to an atom represent?
Last Answer : What does the principal quantum number ‘n’ and azimuthal quantum number ‘l’ of an electron belonging to an atom represent?
Description : The azimuthal quantum number determines the: w) spin of an electron x) shape of an orbital y) size of an orbital z) energy of an orbital
Last Answer : ANSWER: X -- SHAPE OF AN ORBITAL
Description : The orientation of an atomic orbital is governed by – (1) principal quantum number (2) magnetic quantum number (3) spin quantum number (4) azimuthal quantum number
Last Answer : (2) magnetic quantum number Explanation: Quantum numbers may be defined as a set of four numbers which give complete information about the electron in an atom, i.e., energy, orbital occupied, size ... tells the number of orientations which the orbitals present within the same sub-shell can take up.
Description : Two electrons in an orbital are differentiated by which of the following? (1) Magnetic quantum number (2) Spin quantum number (3) Principal quantum number (4) Azimuthal quantum number
Last Answer : (2) Spin quantum number Explanation: Spin quantum number is the is the fourth quantum number that differentiates two electrons in the same orbital. The Pauli exclusion principle states that "no two ... atom. Each electron must have a different spin or occupy a different shell from any other.
Last Answer : (2) Spin quantum number Explanation: Spin quantum number is the fourth quantum number that differentiates two electrons in the same orbital.
Description : Explain the significance of Azimuthal quantum number.
Last Answer : Ans. It refers as sub-energy level of an atom.
Description : Two electrons in an orbital are differentiated by which of the following ? (1) Magnetic quantum number (2) Spin quantum number (3) Principal quantum number (4) Azimuthal quantum number
Last Answer : Spin quantum number
Description : The orientation of an atomic orbital is governed by (1) principal quantum number (2) magnetic quantum number (3) spin quantum number (4) azimuthal quantum number
Last Answer : magnetic quantum number
Description : From the elements: Cl, Br, F, O, Al, C, Li, Cs and Xe; choose the following: (a) The element with highest negative electron gain enthalpy. (b) The element with lowest ionization enthalpy. ( ... . (f)The element which belongs to zero group. (g) The elements which forms largest number of compounds.
Last Answer : Ans. (a). The element chlorine (Cl) has the highest negative electron gain enthalpy. (b). The element cesium (Cs) has lowest ionization enthalpy. (c). The element fluorine F has lowest atomic radius. (d ... zero group (or group 18). (g). The element carbon (C) forms the largest number of compounds.
Description : If the value of principal quantum number is 4 , the possible values for magnetic quantum number will be :-
Last Answer : If the value of principal quantum number is 4 , the possible values for magnetic quantum number will be :- A. 4 B. 16 C. 32 D. 9
Description : The block of elements in the periodic table which are filling the 4-f electron shell are known as:
Last Answer : ANSWER: LANTHANIDES
Description : In how many elements does the electron have the quantum number of n =4 and l = 1 ?
Last Answer : In how many elements does the electron have the quantum number of n =4 and l = 1 ? A. 4 B. 6 C. 8 D. 10
Description : What could the fourth quantum number of 1s2 electron be?
Last Answer : Ms = + 1/2
Description : What element with an electron configuration that ends with np2 where n is any principal quantum number?
Last Answer : Feel Free to Answer
Description : What information does the first quantum number of an electron?
Last Answer : The energy level the electron is in
Description : The maximum electron capacity of any orbital is (a) 2 (b) 6 (c) 14 (d) Cannot be determined unless the principal quantum number is known
Last Answer : Ans:(a)
Description : The orbital angular momemtum quantum number indicates which one of the following? w) the average distance of the electrons from the nucleus x) the direction of spin of the electron y) the shape of the orbital z) the position about the three axes in space of the orbital
Last Answer : ANSWER: Y -- THE SHAPE OF THE ORBITAL
Description : Which quantum number indicates the shape of the orbital in which the electron moves?
Last Answer : ANSWER: B -- SPIN QUANTUM NUMBER
Description : Which of the following indicates the shape of the orbital in which the electron moves? w) principal quantum number x) spin quantum number y) angular momentum quantum number z) none of these
Last Answer : ANSWER: Y -- ANGULAR MOMENTUM QUANTUM NUMBER
Description : Mark correct option relating to All India mail survey a) The survey will be conducted in one selected P.O. in each Division. The Post Office can be a Head Post Office or a Sub-Post Office. b) The ... 25% of the articles received in the Post Office should be taken for the study. e) All the above
Last Answer : e) All the above
Description : Five valence electrons of `.^(15)P` re labelled as If the spin quantum numbers of B and Z is `+(1)/(2)`, the group of electron with three of the quant
Last Answer : Five valence electrons of `.^(15)P` re labelled as If the spin quantum numbers of B and Z is `+(1)/(2)`, ... A. AB,XYZ,BY B. AB C. XYZ,AZ D. AB,XYZ
Description : Which of the following set of quantum numbers is impossible for an electron ?
Last Answer : Which of the following set of quantum numbers is impossible for an electron ? A. `n = 1, l = 0,m_(l) = 0,m_(s) = ... = 2,m_(l) = -3,m_(s) = +(1)/(2)`
Description : What electron could have quantum numbers n 4 l 2 ml -2 ms - 12?
Last Answer : Need answer
Description : In the modern quantum-based atomic theory what is the name given to a particular space around the nucleus in which an electron moves?
Last Answer : The name given to a particular space around the nucleus in whichan electron moves is Orbital
Description : What electron could have quantum numbers n 4 l 2 ml -2 ms -12?
Last Answer : What is the answer ?
Description : What electron could have quantum numbers n 4 l 2 ml -2 ms?
Last Answer : A 4d electron; that is for apex :)
Description : “Each electron in an atom must have its own unique set of quantum numbers” is a statement of--------? A. Aufbau principle B. Pauli exclusion principle (Answer) C. Hund’s rule D. Periodic law
Last Answer : B. Pauli exclusion principle (Answer)
Description : The _____ of a detector is the fraction of incident photons that produce a photoelectron or electron-hole pair ∙ a. Responsitivity ∙ b. Photon efficiency ∙ c. Aperture ∙ d. Quantum efficiency
Last Answer : d. Quantum efficiency
Description : Draw the atomic structure of (i) an atom with same number of sub-atomic particles, (ii) an atom with same number of electrons in L and M shell. -Chemistry 9th
Last Answer : (i) Oxygen Number of electrons = 8 Number of protons= 8 Number of neutron= 8 (ii) Argon Atomic number =18=2,8,8 No of electrons in L shell = 8 No of electrons in M shell = 8
Description : (3) the number of electrons orbiting around the nucleus Explanation: The chemical behavior of an atom is determined by the number of electrons on its outer shell. As for the chemical bonding properties of ... , and in what ratio atoms will bond to form the 20,000,000 different substances on Earth.
Last Answer : Methyl phenyl ether can be obtained by reacting - (1) phenolate ions and methyl iodide (2) methoxide ions and bromobenzene (3) methanol and phenol (4) bromobenzene and methyl bromide
Description : The mass of an electron in motion depends upon - (1) Direction of motion (2) B its velocity (3) C its velocity of e- (4) D it’s shell number
Last Answer : (2) B its velocity Explanation: The electron has a mass that is approximately 1/1836 that of the proton. Quantum mechanical properties of the electron include an intrinsic angular momentum (spin) of a half-integer value, expressed in units of the reduced Planck constant, ħ.
Description : Which one of the following statements concerning elements in the Periodic Table is correct? A Elements of the same group all have the same number of electrons in the outermost occupied electron shell. B ... (Group 17) are all gases at room temperature. E The Group 13 elements are all metals.
Last Answer : D) Are compounds that exhibit both metallic & non-metallic properties to some extent and are exemplified by elements like germanium, silicon & boron
Description : Assertion `(A) : K-` shell electron capture is detected by analyzing the wavelength of `X-` ray emitted. Reason `(R):` The wavelength of the `X-` ray
Last Answer : Assertion `(A) : K-` shell electron capture is detected by analyzing the wavelength of `X-` ray emitted. ... D. If both (A) and (R ) are incorrect.
Description : What do we call the outer electron shell of an atom?
Last Answer : The outer electron shell of an atom is the valence shell.
Description : The energy required to remove the electron from the outermost shell from a free and isolated atom of the element is called
Last Answer : Ionisation energy.
Description : The distance between the centre of the nucleus and the outermost electron shell of an atom is called
Last Answer : atomic size
Description : Electrons which are free to move around are also called A. conduction electrons B. valence shell electrons C. inner electrons D. electron sea
Last Answer : conduction electrons
Description : What term is used to describe the definite discrete amounts of energy required to move an electron from a low shell to a higher shell?
Last Answer : Quanta.
Description : A characteristic of the noble gases is that they all: w) have eight electrons in the outer shell x) have low stability y) form many compounds z) have filled outer electron shells
Last Answer : ANSWER: Z -- HAVE FILLED OUTER ELECTRON SHELLS
Description : Write a shell script to accept length and breadth of rectangle from user. Calculate and display area, perimeter, of entered values using choice entered by user.
Last Answer : #!/bin/bash # GNU bash, version 4.3.46 echo "Enter Length of Rectangle: " read length echo "Enter Breadth of Rectangle: " read breadth echo "Which operation you want to perform? 1: area 2: perimeter" read ... ) res=` echo 2 \* $length \* $breadth | bc` ;; esac echo "Result is $res" exit 0
Description : The subshell that arises after f subshell is called g subshell. ltBrgt What is the total number of orbitals in the shell in which the g- subshell firs
Last Answer : The subshell that arises after f subshell is called g subshell. ltBrgt What is the total number of orbitals in the shell ... ? A. 9 B. 16 C. 25 D. 36
Description : What element has one electron in the 6p sub level?
Last Answer : 6p1 represents the element in the 6th period on the Periodic Table with one p electron. This element is thallium, Tl , with atomic number 81.
Description : The membership values of the membership function are nor strictly monotonically increasing or decreasing or strictly monoronically increasing than decreasing. A. Convex Fuzzy Set B. Non convex fuzzy set C. Normal Fuzzy set D. Sub normal fuzzy set
Last Answer : B. Non convex fuzzy set
Description : Does Quantum Physics and the mystery it suggest about the possible Universes point to a God?
Last Answer : No.
Description : Is the outcome of every possible action predetermined and quantum mechanics as me know them are an unfinished theory? Einstein thought so.
Last Answer : answer:Well, that's called determinism, and I know many people who believe in it. The idea is that if you have all the data in the universe and were able to analyze it, you could predict ... t subscribe to that. I feel that there is pure randomness that is out there that is not predictable.
Description : What are the values of the orbital angular momentum of an electron in the orbitals `1s,3s,3d` and `2p`:- (a). `0,0sqrt(6h),sqrt(2h)`(b). `1,1sqrt(4h),
Last Answer : What are the values of the orbital angular momentum of an electron in the orbitals `1s,3s,3d` and `2p`:- (a). `0 ... (3)ħ` D. `0,0,sqrt(20)ħ,sqrt(6)ħ`
Description : The total number of electrons present in `4^"th"` shell of Astatatine (`._85At`) are:
Last Answer : The total number of electrons present in `4^"th"` shell of Astatatine (`._85At`) are:
Description : The number of electrons, present in the valence shell of carbon of carbanion bearing `-ve` charge, is:
Last Answer : The number of electrons, present in the valence shell of carbon of carbanion bearing `-ve` charge, is: A. 8 B. 7 C. 6 D. 4