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Name __________________________________________________________ Date ____________________
Atoms vs. Ions worksheet
Cations
Anions
Have a positive charge because they
__________________ electrons
Have a negative charge because they
__________________ 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+
For each box, use the Bohr diagram to show the number of electrons in a standard atom. Then, you will need to
determine if the atom would lose or gain electrons and draw the Bohr diagram to show the number of
electrons in the ion. The first one has been done for you.
Lithium
Lithium Atom
Lithium Ion
Lithium Ion
Group _1_, Period _2_
Atomic #: 3
Atomic #: 3
Electrons: 2
Electrons: 3
Cation/Anion: Cation
Valence Electrons: 1
Ion Symbol: Li1+
Beryllium
Group ____, Period
____
Beryllium Atom
Beryllium Ion
Atomic #:
Atomic #:
Electrons:
Electrons:
Cation/Anion:
Valence Electrons:
Ion Symbol:
Nitrogen
Group ____, Period
____
Beryllium Ion
Nitrogen Atom
Nitrogen Ion
Atomic #:
Atomic #:
Electrons:
Electrons:
Cation/Anion:
Valence Electrons:
Ion Symbol:
Nitrogen Ion
Boron
Group ____, Period
____
Boron Atom
Boron Ion
Atomic #:
Atomic #:
Electrons:
Electrons:
Cation/Anion:
Valence Electrons:
Ion Symbol:
Oxygen
Group ____, Period
____
Oxygen Atom
Oxide Ion
Electrons:
Electrons:
Cation/Anion:
Valence Electrons:
Ion Symbol:
Sodium Atom
Sodium Ion
Electrons:
Electrons:
Cation/Anion:
Valence Electrons:
Ion Symbol:
Fluorine Atom
Fluorine Ion
Fluorine Ion
Atomic #:
Atomic #:
Electrons:
Electrons:
Cation/Anion:
Valence Electrons:
Ion Symbol:
Aluminum
Group ____, Period
____
Sodium Ion
Atomic #:
Atomic #:
Fluorine
Group ____, Period
____
Oxide Ion
Atomic #:
Atomic #:
Sodium
Group ____, Period
____
Boron Ion
Aluminum Atom
Aluminum Ion
Atomic #:
Atomic #:
Electrons:
Electrons:
Cation/Anion:
Valence Electrons:
Ion Symbol:
Aluminum Ion
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:
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