6 Sodium (Na) atoms are in 6NaCl.
Sodium chloride, NaCl, is composed of two elements: sodium (or Na) and chlorine (or Cl). A molecule of sodium chloride, NaCl, is made up of one sodium atom and one chlorine atom. As a result, each NaCl molecule has two atoms.
[tex]1\ molecule\ of\ NaCl=2\ atoms\\\\6\ molecule\ of\ NaCl=12\ atoms\\\\[/tex]
So, 6 NaCl contains 12 atoms that is 6 Cl, and 6 sodium.
Hence, the answer is 6.
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