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The maximum number of electrons in the L shell of an atom is
2
18
8
32
The stability of the noble gases is due to the fact that they
have duplet or octet configurations
have no electron in their outermost shell
belong to group zero of the periodic table
are volatile in nature
How many unpaired electrons are present in a nitrogen atom’s sublevels?
2
None
3
1
Across a period from left to right, the general rise in first ionization energy is mainly due to
decrease in screening effect
increase in screening effect
decrease in nuclear charge
increase in nuclear charge
The volume of a gas is V cm3 at P mmHg. What is its new volume if the pressure is reduced to half at constant temperature?
V cm3
V/2 cm3
2V cm3
4V cm3
