Question

Write the name of all elements thier symbols and thier valencies ​

Answer 1

Explanation:

NUMBER SYMBOL ELEMENT VALENCE

1 H Hydrogen 1, 0, -1

2 He Helium 0

3 Li Lithium 1, -1

4 Be Beryllium 2

5 B Boron 3, 2, 1

6 C Carbon 4, 3, 2, 1, -1, -2, -4

7 N Nitrogen 5, 4, 3, 2, 1, 0, -1, -2, -3

8 O Oxygen 2, 1, 0, -1, -2

9 F Fluorine 0, -1

10 Ne Neon

Answer 2

Name of all elements with their symbols and their valancies