Unit 3- Atomic Structure Flashcards
0
Q
Smallest piece of an element that “acts like” that element
A
Atom
1
Q
Only type of item
A
Element
2
Q
The number of protons
A
Atomic number
3
Q
Number of protons + number of neutrons
A
Mass number
4
Q
Atoms of the same element with different masses
A
Isotope
5
Q
1 times 10-10 m
A
Angstrom
6
Q
1/12 the mass of C-12
A
Atomic mass unit
7
Q
The mass of an atom compared to C-12
A
Relative atomic mass
8
Q
The average amount of the relative atomic masses of the naturally occurring isotopes of an element
A
Average atomic mass
