Chemistry, asked by kopatradeeank, 1 year ago

Elements A,B,C,D have atomic numbers 11,20,28 36 respectively1) write down electronic configuration.2) write which group, period or block it belongs to.

Answers

Answered by Anonymous
2
element A=sodium.
electronic configuration:-1S2 2S2 2P6  3S1
group=1A 
period=3
block=s block

element b=calcium
electronic configuration:- 1S2 2S2 2P6 3S2 3P6 4S2
group=2A
PERIOD=4
BLOCK= S- BLOCK

ELEMENT C= NICKEL
ELECTRONIC CONFIGURATION=1S2 2S2 2P6 3S2 3P6 3D8 4S2
GROUP=10
PERIOD=4
BLOCK=D

ELEMENT D=KRYPTON
ELECTRONIC CONFIGURATION=1S2 2S2 2P6 3S2 3P6 3D10 4S2 4P5
GROUP=17
PERIOD=4 
BLOCK=P.
Similar questions