Question

20 elements with thier atomic number protons electrons neutrons

Answer 1

1. Hydrogen
Protons: 1
Electrons: 1
Neutrons:0
2. Helium
Protons: 2
Electrons: 2
Neutrons:2
3. Lithium
Protons: 3
Electrons:3
Neutrons:4
4. Boron
Protons:5
Electrons:5
Neutrons:6
5.Carbon
Protons:6
Electrons:6
Neutrons:6
6.Nitrogen
Protons: 7
Electrons:7
Neutrons:7
7. Beryllium
Protons:4
Electrons:4
Neutrons:5
8. Oxygen
Protons:8
Electrons:8
Neutrons:8
9.Fluorine
Protons:9
Electrons:9
Neutrons:10
10. Neon
Protons: 10
Electrons:10
Neutrons:10
11. Sodium
Protons: 11
Electrons:11
Neutrons:12
12.Magnesium
Protons:12
Electrons:12
Neutrons:12
13.Aluminium
Protons:13
Electrons:13
Neutrons:14
14.Silicon
Protons:14
Electrons:14
Neutrons:14
15.Phosphorus
Protons:15
Electrons:15
Neutrons:16
16. Sulfur
Protons:16
Electrons:16
Neutrons:16
17.Chlorine
Protons:17
Electrons:17
Neutrons:18
18.Argon
Protons:18
Electrons:18
Neutrons:22
19. Potassium
Protons:19
Electrons:19
Neutrons:20
20. Calcium
Protons:20
Electrons:20
Neutrons:20