How Many Neutrons Does Gadolinium Have?
“Hi I’m Brian with EricksonTutoring.blogspot.com. Today we’re going to figure out how many neutrons gadolinium has. So in order to figure this out, we need to figure out a couple things. First we need a periodic table, we need to locate gadolinium and we need to find out two specific details about it. We need to find out its atomic number, so the number associated with the element and we also need to find out its atomic weight which is the larger number below. So gadolinium element 64 has an atomic weight of 157.25. In order to figure out how many neutrons it has, we have to go through a couple of steps. First of all the number of protons is simply the atomic number 64. So there’s 64 protons. This means that there’s also 64 electrons since chargers have to balance. Now in order to find out the number of neutrons, the neutrons plus the protons equal the atomic mass. So our atomic mass is 157 and a quarter, round that to the nearest whole number, 157. So if we rewrite our equation with t
