Question

Calculate the effective nuclear charge on tha valance electron of copper

Answer 1

Explanation:

Effective nuclear charge Z

eff

=Z-S

where Z= atomic number

and S = screening constant

= 0.35 per electron for electron

in nth orbit.

= 0.85 per electron for electrons

in (n 1)th orbit

= 1.00 per electron for electrons in (n - 2)then- 3)then - 4th orbit

= 0.30 per electron in 1s-orbital (when alone)

This electron is screened by 18 electrons in (n - 1), 8-electrons in (n - 2) and 2-electrons in (n-3)

Thus, o=

8x0.85

O 88

(n-1)s

2

р

6

+

1x10

(n-1)d

10

+

8x1

Chemistry

5 points

O 88

(n-2)s

2

р

6

+

2x1

(n-3)s

2

=26.8

Thus, Z

*

=29-26.8=2.2