atoms mollicules Flashcards
1
Q
atom
A
the smallest pertical element that retains property
2
Q
Element
A
A pure Chemical substance that cannot be physical split
3
Q
Molecule
A
the smallest particle of a substance that exist. it is composed of two o more attoms
4
Q
compound
A
A substance made of atoms from two or more elements
5
Q
proton
A
a partical of matter that has a positive electrial charge and forms part of the nucleus of an atom
