Question

Find Groups,periods and the name of following elements using given electronic configuration.1s2 2s2 2p5 and 1s2 2s2 2p6 3s2 3p1 and 1s2 2s2 2p3 and 1s2 2s2 2p6 3s2 3p6 4s2 and 1s2 2s2 2p6 3s2 3p4 and 1s2 2s2 2p6 3s1​

Answer 1

Answer:

The electron configuration for Copper (Co) is: 1s2 2s2 2p6 3s3 3p6 4s2 3d7. A chemist would shorten this notation to just "3d7" - calling Copper by the subshell of highest energy that contains any electrons.