Question

Atomic number
Element/lon
Mass number
Protons
Electrons
Neutrons
120
6
17
P-3
31
18
Na+1
1602-
8
Vi. Complete the following table :​

Answer 1

Answer:

a) It has an atomic number of 6. That means a carbon atom has 6 protons, 6 neutrons, and 6 electrons.

b) Chlorine has an atomic number of 17 and an atomic mass of 35.45, meaning that an atom of chlorine consists of 17 protons, 17 electrons, and 18 neutrons.

c) Atomic number of phosphorus is 15 . So, it has 15 electrons and 15 protons.

d) Sodium has a mass number of 23amu.the atomic number of sodium is 11. This tells us that sodium has 11 protons and because it is neutral it has 11 electrons.

e) The oxygen atom has therefore 8 neutrons, 8 protons and 8 electrons.