atoms, ions and isotopes Flashcards
1
Q
atom
A
NO CHARGE
equal amount of protons and electrons
2
Q
protons
A
relative charge: +1
relative mass: 1
3
Q
electrons
A
relative charge: -1
relative mass: 0
4
Q
neutrons
A
NO electric charge
relative mass: 1
5
Q
atomic number=
A
number of protons and electrons
(will always be the small number)
6
Q
mass number=
A
mass number= protons + neutrons
7
Q
elements
A
only contain one type of atom
8
Q
compounds
A
contain more than 1 type of atom
9
Q
finding the number of neutrons=
A
mass number - atomic number
10
Q
isotopes
A
atoms of the same element with a different number of neutrons
some can be radioactive
11
Q
loss of electrons=
A
positive ion
12
Q
gain of electrons=
A
negative ion
