science chapter 13-14 Flashcards
1
Q
what is the study of the composition and interaction of matter
A
chemistry
2
Q
composed of a single type of atom
A
element
3
Q
substances composed of atoms of 2 or more elements bonded together
A
compound
4
Q
physical combinations of elements and compounds
A
mixture
5
Q
physical combinations of elements and compounds
A
mixture
6
Q
smaller particles that make up atoms
A
subatomic particle
7
Q
of protons in the nucleus
A
atomic number
8
Q
same element but different # of neutrons
A
isotope
9
Q
atom has electric charge cause of gaining or losing electrons
A
ion
10
Q
total number of protons and neutrons in nucleus
A
mass number
11
Q
masses of atoms usually measured in
A
atomic mass units
