Question

how i can write chemical formula of any elemant​

Answer 1

Explanation:

• First you should know valency of each element.
• THEN if you have to write chemical equations of any two element than write the vealencies of two element.
• Then cross multiply with each you will get the answer.

Answer 2

Answer:

Look at the periodic table, the letters that are big and in the centre denote the chemical formula for each element. Only for halogens and other exceptions like oxygen, hydrogen and nitrogen, you need to add a two behind their symbol. For example, oxygen is O2, nitrogen is N2. And for other elements: sodium is Na and sulfur is S.

Hope this helps.