Atoms are such human like things: they can get exited, form strong bonds, always try to be in a lower energy state and even betray other atoms for their own benefit.

Technically they aren’t things, they make up elements which make up things

And just like humans, when they split, it's all over

Well atoms are made out of 3 things and two of those are made out of two things and the other one makes it a proton or a neutron