Question

An atom of an element contains 29 electrons and 35 neutrons . no. of unpaired electrons

Answer 1

Answer:

1

Explanation:

29 electrons are arranged in various orbitals as 1s2 2s2 2p6 3s2 3p6 3d10 4s1

So, there is only one unpaired electron in the 4s orbital and all other electrons are paired.