Answer: Solids and liquids don't suddenly change their volumes.
But gases do...they expand to fill whatever container you
put them in.
Michael's mystery substance is in the gaseous phase.
Explanation:
Answer:
The density remains the same
Explanation:
The density remains the same because cutting the object in half will divide the mass & volume by the same amount. The density cant be changed no matter what happens to it.
1) Xenon
2) Berylium
3) Aluminium (Assuming 3p = 3rd Period)
4) Tungsten
5) Bromine
6) Xenon again
7) Indium I think
8) Strontium
9) Titanium
10) Oxygen
11) I don't understand that at all XD
12) Rutherfordium
13) Radon
14) Potassium?
15) Argon
So somebody needs to confirm 3, 7, 11, and 14, but I think the rest are correct if you load up a Periodic table
Answer:
Last one
Explanation:
There always has to be evidence to back that up.
Answer:
it will have 6 valence electrons
it will gain electrons
charge will be 2-
