How many electrons are there in valence shell of Mg atom?

How many particles are there in an atom?

How many electrons can have s+ ½ in a d-sub-shell?

How many unpaired electrons are there in Gd(Z = 64) atom ?

How many electrons with l =2 are there in on atom having atomic number 23?

How many electrons are present in 1 millimole of methane?

How many electrons are present in 1 millimole of methane?

How many C atoms are there in pyranose ring ?

It is because of inability of n^2 electrons of the valence shell to participate in bonding that-

(i) In neon (Ne) atom, how many electrons are there which spin in anti-clockwise direction? (2) For how many electrons of Cl-atom, n+l=3?

How many electrons are in the same and opposite spin in an atom fo silver? (Atomic Number of Silver = 47)