Name: ________________________________________________ Date: _____________ Period: ___________
Atoms vs. Ions worksheet
Cations:
Have a positive charge
Have lost electrons
Anions:
Have a negative charge
Have gained electrons
Ion symbol:
To write the ion symbol, you must write the element symbol with the charge written on the top right.
Example: Ca2+, Zn2+, Ag1+
Lithium atom
Lithium atom
Beryllium atom
Lithium ion
Beryllium ion
Lithium ion
Atomic number:
Atomic number:
Mass number:
Mass number:
Protons:
Protons:
Neutrons:
Neutrons:
Electrons:
Electrons:
Cation/Anion:
Ion symbol:
Beryllium atom
Atomic number:
Mass number:
Protons:
Neutrons:
Electrons:
Beryllium ion
Atomic number:
Mass number:
Protons:
Neutrons:
Electrons:
Cation/Anion:
Ion symbol:
Boron atom
Nitrogen atom
Oxygen atom
Fluorine atom
Boron ion
Nitrogen ion
Oxygen ion
Fluorine ion
Boron atom
Atomic number:
Mass number:
Protons:
Neutrons:
Electrons:
Boron ion
Atomic number:
Mass number:
Protons:
Neutrons:
Electrons:
Cation/Anion:
Ion symbol:
Nitrogen atom
Atomic number:
Mass number:
Protons:
Neutrons:
Electrons:
Nitrogen ion
Atomic number:
Mass number:
Protons:
Neutrons:
Electrons:
Cation/Anion:
Ion symbol:
Oxygen atom
Atomic number:
Mass number:
Protons:
Neutrons:
Electrons:
Oxygen ion
Atomic number:
Mass number:
Protons:
Neutrons:
Electrons:
Cation/Anion:
Ion symbol:
Fluorine atom
Atomic number:
Mass number:
Protons:
Neutrons:
Electrons:
Fluorine ion
Atomic number:
Mass number:
Protons:
Neutrons:
Electrons:
Cation/Anion:
Ion symbol:
Sodium atom
Sodium atom
Sodium ion
Sodium ion
Atomic number:
Atomic number:
Mass number:
Mass number:
Protons:
Protons:
Neutrons:
Neutrons:
Electrons:
Electrons:
Cation/Anion:
Ion symbol:
Magnesium atom
Aluminum atom
Phosphorus atom
Sulfur atom
Chlorine atom
Magnesium ion
Aluminum ion
Phosphorus ion
Sulfur ion
Chlorine ion
Magnesium atom
Atomic number:
Mass number:
Protons:
Neutrons:
Electrons:
Magnesium ion
Atomic number:
Mass number:
Protons:
Neutrons:
Electrons:
Cation/Anion:
Ion symbol:
Aluminum atom
Atomic number:
Mass number:
Protons:
Neutrons:
Electrons:
Aluminum ion
Atomic number:
Mass number:
Protons:
Neutrons:
Electrons:
Cation/Anion:
Ion symbol:
Phosphorus atom
Atomic number:
Mass number:
Protons:
Neutrons:
Electrons:
Phosphorus ion
Atomic number:
Mass number:
Protons:
Neutrons:
Electrons:
Cation/Anion:
Ion symbol:
Sulfur atom
Atomic number:
Mass number:
Protons:
Neutrons:
Electrons:
Sulfur ion
Atomic number:
Mass number:
Protons:
Neutrons:
Electrons:
Cation/Anion:
Ion symbol:
Chlorine atom
Atomic number:
Mass number:
Protons:
Neutrons:
Electrons:
Chlorine ion
Atomic number:
Mass number:
Protons:
Neutrons:
Electrons:
Cation/Anion:
Ion symbol:
Atoms and Ions Worksheet
Fill in the missing spaces in the charts below.
Element
Symbol
Carbon
Atomic
Number
6
O
Mass
Number
8
Sn
20
41
50
Zinc
68
64
30
66
68
Cobalt
Co
30
30
27
32
Boron
5
6
10
5
26
Ion
Iodine
Symbol
Atomic
Number
Mass
Number
53
Cl-1
35
17
1
1
B+3
O-2
35
Neutrons
Electrons
54
0
46
35
79
5
11
16
Nitrogen
Aluminum
Protons
127
Br-1
Oxygen
28
I-1
Hydrogen
Electrons
10
19
19
Neutrons
14
Potassium
Tin
Protons
36
8
7
7
10
Al+3
27
Fe+2
56
26
24
63
29
27
10