20 elementsofchapter 3th with atomic mass and no.
Answers
Answered by
0
- Explanation:
Hydrogen ,Helium ,Lithium ,beryllium, Boron carbon, Nitrogen ,Oxygen, fluorine ,neon, sodium magnesium, aluminium, Silicon, Phosphorus Sulphur ,chlorine ,argon,potassium, calcium
Answered by
1
Answer:
hydrogen a.mass is 1 atomic no. is 1 helium lithium berellium boron carbon nitrogen oxygen fluorine neon sodium magnesium aluminium sulphur phosphorous chlorine argon potassium calcium
Similar questions