Answer:
It's nitrogen
Explanation:
cuz it has valence 3 and a diatomic gas at room temperature
11. D
12.C
13. For 13 i would say B but not so sure
14. A
Answer: Alpha
Explanation:
Alpha particle form of decay produces a nucleus similar to the element helium. During Alpha decay an atom spits out two protons and two neutrons from its nucleus.
In ionic bond there is the formation of ions due to transfer of electrons from one atom<span> to </span>the other. Normally, at this link, there is an element that tends to yield electrons (metal-cation), and one that tends to receive electrons (not metal-anion).
Note: the Ionic bond is the only in the transfer of electrons<span>.</span>
Water can be split into O2 and H2 gas