atoms Flashcards
1
Q
what is an atom
A
an atom is the smallest part of a substance that can exist
2
Q
what is an element
A
an element is a substance made out of only one type atom
3
Q
what is a compound
A
a compound is a substance that contains two or more different elements chemically bonded in fixed proportions
4
Q
what is a mixture
A
a mixture is a group of different elements or compounds that are not chemically combined
5
Q
what is a molecule
A
a molecule is a substance that has any elements chemically combined
6
Q
what is a atom made out of
A
an atom is made out of a nucleus that is surrounded by electrons circling it
