Question

which d-block elements has halfilled penutilmate d- sub shell as well as halffilvalence shel

Answer 1

Answer:

Electron configuration−1s

2

2s

2

2p

6

3s

2

3p

6

4s

1

3d

5

Valance shell−4s

1

(half filled)

Penultimate shell−3d

5

Chromium has half filled penultimate as well as valance subshell.

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Answer 2

Answer:

Electron configuration

−1s2 2s 2 2p 63s 2 3p 6 4s 1 3d 5

Valance shell−4s 1

(half filled)

Penultimate shell−3d 5

Chromium has half filled penultimate as well as valance subshell.

solution