Question

Complete the chart:

Name of the element	Symbol of the element	Atomic number	Mass number	No. of protons	No. of electrons	No. of neutrons	Electronic configuration
Sulphur	S	16			16	16

Answer 1

Identify the number of protons:

Atomic number = Number of protons

Thus,

Number of protons = 16

Determine the mass number:

Mass number = number of protons + number of neutrons $=16+16=32$

Write the electronic configuration for Sulphur:

1. The number of electrons in Sulphur is 16.

2. The first K shell occupies 2 electrons, and 8 electrons go to the second L shell, and 6 will go to the M shell.

3. Thus, the electronic configuration of carbon is K=2, L=8 and M=6.

Name of the element	Symbol of the element	Atomic number	Mass number	No. of protons	No. of electrons	No. of neutrons	Electronic configuration
Sulphur	S	16	32	16	16	16	K = 2	L = 8	M = 6