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samphyly atom


atomic mass the "weight" of an atom- the same as the massnumber.
atom is the smallest that has all the ceimical charactistics of an element and can not be seen even with a microscope.
scientific evidence is the collection of observation that many people have made.everyone agree on the same collection of observations.
scientific model is an idea that allows us to create explanations of how we think some part of the world works. similar to a theory.
atomic number is the number of protons in the nucelus of an atom.
mass number is the number of protons+number of neutrons.
Created by: samphyly