The atomic mass on the periodic table represents the sum of number of protons and number of neutrons.
Atomic mass = Number of protons + number of neutrons
Hope this helps!
A gene is harder to explain but it is scientifically what decides who you are (what you look like) and a trait is something from how you act to somoyour interested in. Ex. Girl who is a dog lover
The gene decides she is a girl
The trait is that she likes dogs
Igneous Rock because all those ingredients are in them
