Question

which of the ff atoms in its ground state has the greatest number of un paired electrons ,4si., 16s , 13al , 14si

Answer 1

Answer:

Explanation:

The atomic number of the element having maximum number of unpaired 3p electrons (in ground state) is 3. The maximum number of unpaired 3p electrons is 3. Hence, the electronic configuration becomes 1s  

2

2s  

2

2p  

6

3s  

2

3p  

3

. Hence, the atomic number is 2+2+6+2+3=15.