Answer:
b
Explanation:
I used my passion and skill for learning to do a quick google search :P
The particles are quite tightly packed together but still have enough room to be able to move and flow, their bonds aren't as strong as a solids are
Answer: 22 neutrons
Explanation: 40 is the mass number = atomic mass = total number of protons and neutrons in atomic nucleus
18 is the number of protons in the nucleus of this atom
Then 40 - 18 = 22 neutrons
and this is Argon
