Answer:
5
Explanation:
The atomic number is the number of protons in an atom. Protons are the positively charged particles in the nucleus. The number of protons define the identity of an element. An element with 5 protons is Boron, no matter how many neutrons may be present.
i dont know
Is this a question?
Cause if it is I dont understand it.
It would probably be, something that can take up moisture to test it.
(to see if it can evaporate)
thx
I hope this helps Chemistry is so hard and I hate it