Answer:
Because a molecule, by definition, has a valence of zero
(neutral charge, stable). Also by definition, an ion has a positive
or negative charge or valence and is not stable.
Explanation:
Answer: There are
atoms in 24 moles of Fe.
Explanation:
According to the mole concept, 1 mole of a substance contains
atoms.
Therefore, atoms present in 24 moles of Fe are calculated as follows.

Thus, we can conclude that there are
atoms in 24 moles of Fe.
Answer:
it is made up of rays of varying frequencies
Answer:
The average atomic mass of boron is found to be
10.80
Explanation:
also u answered it urself