write 20 elemets valency
Answers
Answered by
1
Answer:
Hydrogen- 1
Helium - 0
Lithium - 1
Beryllium - 2
Boron - 3
Carbon - 4
Nitrogen - 3
Oxygen - 2
Fluorine - 1
Neon - 0
Sodium - 1
Magnesium -2
Aluminum- 3
Silicon -4
Phosphorus-3
Sulphur -2
Chlorine -1
Argon -0
Potassium-1
Calcium -2
Answered by
0
Answer:
above answer is correct ✔️✅☑️
Similar questions