Question

16 Ser-A
Set-B
Balmes
P) 80-95% Cu and 20 -25% Sa
5 as
) 80% Co and 20% Sa
1) 70-80% Cu and 30 -20% Zn
Di Gunel
S) 88% Cu 10% Sn and 2% Zn​

Answer 1

Explanation:

ANSWER

Electronic configuration of Chromium, with atomic number 24=1s

2

2s

2

2p

6

3s

2

3p

6

4s

1

3d

5

.

Electronic configuration of Copper, with atomic number 29=1s

2

2s

2

2p

6

3s

2

3p

6

4s

1

3d

10

.