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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: