9/8 class notes Flashcards
1
Q
atomic number (z)
A
of protons (what makes an element unique)
2
Q
mass number (A)
A
of protons and # of neutrons
3
Q
set up for nuclide symbol/notation
A
A q (q=relative charge)
X
z
4
Q
how to find neutron amount
A
mass number minus atomic number
5
Q
isotopes
A
have the same atomic number but different mass number
6
Q
atomic mass units
A
a.m.u is the average mass listed in the periodic table
7
Q
how to find most common isotopes
A
look for closest integer value to the average mass
8
Q
ions
A
charged atoms
9
Q
positive charged ion is
A
cation
10
Q
negative charged ion is
A
anion
11
Q
A
