Question

The electronic configuration 1S2.2S2.2P6.3S2.3P6.3d9 reprsents a - (a)metal atom
(b) non metal atom
(c) non metallic atom
(d) metallic atom
give the right answer...​

Answer 1

Explanation:

the right answer is (A)

because the 27 is the atomic no of cobalt

then it is metal atom

Answer 2

Answer:

PLEASE MARK AS BRAINLIEST ☺☺☺☺☺☺☺☺☺☺☺☺☺

this electronic configuration represent the metal atoms as its metallic character increases as we down the group and decrease as we move along the periods

Explanation:

PLEASE FOLLOW ME