Question

how to find how many atoms are present in molecule or ion​

Answer 1

Answer:

To calculate the number of atoms in a sample, you need to find how many moles of the element the sample contains. A mole is a unit chemists use. It's equal to Avogadro's number (6.02 X 1023) of atoms. By definition, the weight of one mole of an element (its molar mass) is equal to its atomic weight in grams.

Hope it helps u

Answer 2

Answer:

By seeing the valency or charge in ion

I think that ......

Explanation:

if you want to know about mole concept

then 1 mole is 6.022*10²³atoms