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 ion
Atomic number: Atomic number:
Mass number: Mass number:
Protons: Protons:
Neutrons: Neutrons:
Electrons: Electrons:
Lithium atom Lithium ion Cation/Anion: Ion symbol:
Beryllium atom Beryllium ion
Atomic number: Atomic number:
Mass number: Mass number:
Protons: Protons:
Neutrons: Neutrons:
Electrons: Electrons:
Beryllium atom Beryllium ion Cation/Anion: Ion symbol:
Boron atom Boron ion
Atomic number: Atomic number:
Mass number: Mass number:
Protons: Protons:
Neutrons: Neutrons:
Electrons: Electrons:
Boron atom Boron ion Cation/Anion: Ion symbol:
Nitrogen atom Nitrogen ion
Atomic number: Atomic number:
Mass number: Mass number:
Protons: Protons:
Neutrons: Neutrons:
Electrons: Electrons:
Nitrogen atom Nitrogen ion Cation/Anion: Ion symbol:
Oxygen atom Oxygen ion
Atomic number: Atomic number:
Mass number: Mass number:
Protons: Protons:
Neutrons: Neutrons:
Electrons: Electrons:
Oxygen atom Oxygen ion Cation/Anion: Ion symbol:
Fluorine atom Fluorine ion
Atomic number: Atomic number:
Mass number: Mass number:
Protons: Protons:
Neutrons: Neutrons:
Electrons: Electrons:
Fluorine atom Fluorine ion Cation/Anion: Ion symbol:
Sodium atom Sodium ion
Atomic number: Atomic number:
Mass number: Mass number:
Protons: Protons:
Neutrons: Neutrons:
Electrons: Electrons:
Sodium atom Sodium ion Cation/Anion: Ion symbol:
Magnesium atom Magnesium ion
Atomic number: Atomic number:
Mass number: Mass number:
Protons: Protons:
Neutrons: Neutrons:
Electrons: Electrons:
Magnesium atom Magnesium ion Cation/Anion: Ion symbol:
Aluminum atom Aluminum ion
Atomic number: Atomic number:
Mass number: Mass number:
Protons: Protons:
Neutrons: Neutrons:
Electrons: Electrons:
Aluminum atom Aluminum ion Cation/Anion: Ion symbol:
Phosphorus atom Phosphorus ion
Atomic number: Atomic number:
Mass number: Mass number:
Protons: Protons:
Neutrons: Neutrons:
Electrons: Electrons:
Phosphorus atom Phosphorus ion Cation/Anion: Ion symbol:
Sulfur atom Sulfur ion
Atomic number: Atomic number:
Mass number: Mass number:
Protons: Protons:
Neutrons: Neutrons:
Electrons: Electrons:
Sulfur atom Sulfur ion Cation/Anion: Ion symbol:
Chlorine atom Chlorine ion
Atomic number: Atomic number:
Mass number: Mass number:
Protons: Protons:
Neutrons: Neutrons:
Electrons: Electrons:
Chlorine atom Chlorine ion Cation/Anion: Ion symbol:
Atoms and Ions Worksheet
Fill in the missing spaces in the charts below.
Atomic Mass
Element Symbol Protons Neutrons Electrons
Number Number
Carbon 6 14
O 8 10
Potassium 19 20
19 41
Tin Sn 50 68
Zinc 64 30
66 30
68 30
Cobalt Co 27 32
Boron 5 6
10 5
26 28
Atomic Mass
Ion Symbol Protons Neutrons Electrons
Number Number
Iodine I-1 127 53 54
Cl-1 35 17
Hydrogen 1 1 0
Br-1 35 46
35 79 36
B+3 5 11
Oxygen O-2 16 8
Nitrogen 7 7 10
Aluminum Al+3 27 10
Fe+2 56 26 24
63 29 27
