Question

Cr electron configuration by AUFBAU rule.box must present.

Answer 1

Well for the chromium atom,

Z

=

24

, we gots........

1

s

2

2

s

2

2

p

6

3

s

2

3

p

6

4

s

1

3

d

5

This is an unusual config......and

Hund's rule

of maximum multiplicity operates; half-filled electronic orbitals are somewhat stabilized. In 1st year chem, you probably would not have to know this......in 2nd year inorganic chem., you would have to know this.

Upon ionization, the

4

s

and

3

d

electrons are removed to give

C

r

2

+

,

1

s

2

2

s

2

2

p

6

3

s

2

3

p

6

3

d

4

;

C

r

3

+

,

1

s

2

2

s

2

2

p

6

3

s

2

3

p

6

3

d

3

.

Answer 2

hey mate and here is ur answer I hope it will help u