C1.2 Flashcards
1
Q
Isotopes
A
-atoms of the same element with a different number of neutrons
-same atomic number but different mass number
-have the same chemical properties but different physical properties
2
Q
Ions
A
-formed when an atom loses or gains electrons
3
Q
positive ion
A
when electrons are lost a cation is formed
4
Q
negative ion
A
when electrons are gained an anion is formed
5
Q
proton charge
A
+
6
Q
proton mass
A
1
7
Q
neutron charge
A
no charge
8
Q
neutron mass
A
1
9
Q
electron charge
A
-
10
Q
electron mass
A
0.0005
11
Q
order biggest to smallest: proton, nucleus, molecule, atom, electron
A
molecule, atom, nucleus, proton, electron
12
Q
which is bigger the atomic number or the mass number?
A
mass number
13
Q
number of protons=
A
atomic number
14
Q
number of electrons=
A
number of protons
15
Q
number of neutrons=
A
mass number- atomic number
