Chemistry, asked by naren9377, 8 months ago

Q2. (a) State Aufbau principle
(b) Write electronic configuration for Cr 3+ and Fe 2+. Calculate number of unpaired electrons.

Answers

Answered by bvmanjula1986

1

Answer:

From electronic configuration, it can be seen that

1s

2

, 2s

2

2p

6

3s

2

3p

6

4s

0

3d

3

.

Three electrons in 3d sub-shell are unpaired

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