Question

9
An
atom
of
an
element
contains
b29
electrons
and
35
neutrons.
The
electronic

configuration
of
the
element:

a. 1s2

2s2

2p6

3s2

3p5

4s1

3d9

4s2


b. 1s2

2s2

2p6

3s2

3p6

4s1

3d6

4s2

c. 1s2

2s2

2p6

3s2

3p6

4s1

3d10

d. 1s2

2s2

2p6

3s2

3p6

4s2

3d9

4s2​

Answer 1

Answer:

The number of protons is equal to the number of electrons which is 29.

It also corresponds to the atomic number.

The electronic configuration of the element will be [Ar] 18 3d 104s 1 .

Explanation:

1s22s22p63s23p64s13d10. Hence, it is the electronic configuration of copper