Question

how to make chemistry formula​

Answer 1

Answer:

1. Memorize the prefixes for the number of atoms

2. Write the chemical symbol of the first element

3. Add the number of atoms as a subscript

4. Write the chemical symbol for the next element

5. Add the number of atoms present as a subscript

Bonus Tip - Practice with some examples like Sulphur dioxide - SO2.

Answer 2

You can see theory anywhere but I will try to teach you in easier language.

For this the first requirement is valecy.

There are two ways

1. Learn all the valencies
2. Easily calculate them

FOR VALENCY CALCULATION

• you have to learn the atomic number of first 20 elements. Or some other important elements.

• You should have knowledge about electronic configuration. which is 2,8,8,2.....

Then learn the symbols

For making NaCl

Cross there valencies. 1 & 1 .

See the picture for easier learning.