Answer: Krypton
Explanation:
7(14)=84
Krypton, if you look at the periodic table, has an atomic mass of approximately 84. It has a large nucleus, so while it is stable (due to its full octet) the nucleus is probably unstable due to repulsive forces between protons in the nucleus so is probably radioactive.
Answer:
b
Explanation:
now explanation because that is answer
I think it's electric discharge
Temperature differences in the mantle causes the flow of the liquid and the activation of a current to happen in general.
