Answer:
before the substance was a gas it was a liquid.
Explanation:
Atomic number
atomic mass
group|family
periods
and element symbols
Answer:
they are indeed very strong
Answer:
A. The actual number of atoms in a molecule
Explanation:
Molecular formula is simply defined as a type of chemical formula that describes the type and number of atoms present in a single molecule of a compound.
Looking at the options, the correct answer is option A.
