“p” sub shell can accommodate a maximum of ………. electrons.
a)14
b) 6
c) 8
d) 10
“d” sub shell can accommodate a maximum of ……….electrons.
a) 2
b) 14
c) 6
d) 10
Atomic number is 14. The electronic configuration is ………….
a) 1s2,2s2,2p6,3s2,3p2
b) 1s2,2s2,2p5,3s2,3p3
c) 1s2,2s2,2p5,3s2,3p3
d) 1s2,2s1,2p6,3s2,3p2
“f” sub shell can accommodate a maximum of ………. electrons.
a)10
b) 14
c) 2
d) 6
Electrons are accommodated in different energy levels by using ………
a) Auf Bau principle
b) Bohr’s principle
c) Lenz’s law
d) all of these
Explanation:The aufbau principle states that in the ground state of an atom or ion, electrons fill subshells of the lowest available energy, then they fill subshells of higher energy. For example, the 1s subshell is filled before the 2s subshell is occupied.
Electrons fill first ……….. sub shells.
a) lower energy
b) higher energy
c) a & b both
d) none of these
