Atoms are the smallest division of the element. The potassium atoms present in the 235 gm of the compound is  atoms.
 atoms.
<h3>What is the number of atoms?</h3>
Given,
- Mass (m) of Potassium sulfide  = 235 gm = 235 gm
- Molar mass (M) of  Potassium sulfide = 110.26 g/mol
Calculate the number of moles as:

In the given compound  , there are two atoms of potassium and one atom of sulphur.
, there are two atoms of potassium and one atom of sulphur.
If, 1 mole =  atoms of potassium
 atoms of potassium 
Then, 2.13 moles = X atoms
Solving for X:

Therefore, option c.  is correct.
 is correct.
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