Light and sound aren't matter because Photons have no mass.
NaCl:
Na = + 1
Cl = - 1
hope this helps!
Answer:
u should call me justin bc I was just in your mom
<span>The alkali metals and hydrogen are reactive because they have only one electron to give in order to complete their valence shell. It is easier to give that one electron so when given the opportunity they will. This means they will react with anything polar or willing to take an electron.</span>
