The elements P (atomic weight 39) and Q (atomic weight 80) contain 20

1.	The elements P (atomic weight 39) and Q (atomic weight 80) contain 20 and 45 neutrons respectively in their nucleus .Give their electronic arrangements separately. Also give their position in the modern periodic table
Answer» Z=19 1s² ,2s² ,2p⁶ ,3s² ,3p⁶ ,4s¹ P-4th, G-1st Z=35 1s² ,2s²,2p⁶ ,3s² ,3p⁶ ,4s² ,3d¹⁰,4p⁵ . P-4th, G-17th

The elements P (atomic weight 39) and Q (atomic weight 80) contain 20 and 45 neutrons respectively in their nucleus .Give their electronic arrangements separately. Also give their position in the modern periodic table

Answer»

Z=19 1s² ,2s² ,2p⁶ ,3s² ,3p⁶ ,4s¹

P-4th, G-1st

Z=35 1s² ,2s²,2p⁶ ,3s² ,3p⁶ ,4s² ,3d¹⁰,4p⁵ .

P-4th, G-17th