I believe that it's Bilateral symmetry. Hope it's right. :)
If we subtract the atomic number from the weight, we get the number of neutrons in the particle. This is because protons and neutrons each have a weight of 1, while electrons are 0. And since the atomic number is also the number of protons in the atom, subtracting it from total weight gives us the number iif neutrons.
B)if it is heated and put under pressure for long periods of time
If the temperature was too hot, it would become magma instead and the cycle would start all over again.
