a) Copper b) Chromium c) Nickel d) Iron Answer: b Explanation: M shell means it is third ...
View QuestionA sub-shell with n = 6, l = 2 can accommodate a maximum of
a) 12 electrons b) 36 electrons c) 10 electrons d) 72 electrons Answer: c Explanation: n = 6, ℓ ...
View QuestionWhich of the following statements does not form a part of Bohrs model of hydrogen atom?
a) Energy of the electrons in the orbit is quantised b) The electron in the orbit nearest the ...
View QuestionA body of mass 10 mg is moving with a velocity of 100 ms^-1. The wavelength of de-Broglie wave associated with it would be (Note: h = 6.63 × 10^-34 Js)
A body of mass 10 mg is moving with a velocity of 100 ms-1. The wavelength of de-Broglie ...
View QuestionConsider the ground state of Cr atom (Z = 24). The numbers of electrons with the azimuthal quantum numbers, l = 1 and 2 are, respectively
a) 12 and 4 b) 12 and 5 c) 16 and 4 d) 16 and 5 Answer: b Explanation: ...
View QuestionWhich of the following statements in relation to the hydrogen atom is correct?
a) 3s orbital is lower in energy than 3p orbital b) 3p orbital is lower in energy than ...
View QuestionWhich one of the following sets of ions represents a collection of isoelectronic species? (Atomic nos.: F = 9, Cl = 17, Na = 11, Mg = 12, Al = 13, K = 19, Ca = 20, Sc = 21)
a) K+, Ca2+, Sc3+, Cl– b) Na+, Ca2+, Sc3+, F– c) K+, Cl–, Mg2+, Sc3+ d) Na+, Mg2+, Al3+, Cl–
View QuestionWhich of the following statements in relation to the hydrogen atom is correct?
a) 3s orbital is lower in energy than 3p orbital b) 3p orbital is lower in energy than 3d orbital
View QuestionThe electrons identified by quantum numbers n and l
The electrons identified by quantum numbers n and l 1) n = 4, l = 1 ...
View QuestionConsider the ground state of Cr atom (Z=24). The number of electrons with the azimuthal quantum numbers 1 = 1 and 2 are respectively
a) 12 and 4 b) 16 and 5 c) 16 and 4 d) 12 and 5 Answer: d Explanation: ...
View Question