1. There are more than 109 different types of atom - one for each element. Differences between the atoms give the elements their different chemical properties.
2.A compound molecule is made of at least two different kinds of atoms, like NaCl, which only has two atoms per molecule.
Answers & Comments
Answer:
1. There are more than 109 different types of atom - one for each element. Differences between the atoms give the elements their different chemical properties.
2.A compound molecule is made of at least two different kinds of atoms, like NaCl, which only has two atoms per molecule.
Explanation:
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