Nature of Covalent Bonding

Covalent Bonding

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Multiple Choice

We have covered Ionic and Metallic compounds. Covalent compounds are last. They form between?

• Metals and Nonmetals

• Two Metals

• Two Nonmetals

• Two Polyatomic Ions

Multiple Choice

A covalent bond forms when atoms ___________ electrons.

• gain

• share

• increase

• transfer

Covalent Bonds

• Occur between nonmetals + nonmetals

• Electrons are shared between the atoms

• Form individual molecules

Multiple Choice

Pick up the pattern. Name the following molecule. NO₂

• Nitrogen Dioxide

• Nitrogen Oxide

• Nitrous Oxide

• Nitric Oxide

Multiple Choice

Pick up the pattern. Name the following molecule. P₂O₅

• Diphosphorus Pentoxide

• Phosphorus Oxide

• Phosphoric Oxide

• Phosphorus Oxygen

Multiple Choice

Pick up the pattern. Name the following molecule. CO

• Carbon Monoxide

• Carbon Oxide

• Carbonic Oxide

• Carbonous Oxide

Multiple Choice

Pick up the pattern. Name the following molecule. NI₃

• Nitrogen Triiodide

• Nitrogen Iodide

• Nitric Iodide

• Nitrous Iodide

Naming Covalent Molecules

Prefix tells you the quantity of each atom.

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So..

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Prefix-element Prefix-element

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Ex. CO₂​

​Prefixes	​When not to use.
​1 mono	​ with 1st element
​2 di	​
​3 tri	​
​4 tetra	​
​5 penta	​
​6 hexa	​
​7 Hepta	​
​8 Octa	​
​9 Nona	​
​10 Deca	​

Multiple Choice

What is the name of CaCl₂

• Monocalcium Dichloride

• Calcium Chloride

• Calcium Dichloride

Multiple Choice

Disulfur trioxide

• S₃O₂
• SO
• S₂O₃
• S₂O

Multiple Choice

What is the chemical formula for iodine heptafluoride?

• IF₇
• I₇F
• I₇F₇
• IF

Multiple Choice

Name this compound.
N₂O₄

• dinitrogen tetroxide
• dinickel tetroxide
• nitrogen oxide
• nickel oxide

Multiple Choice

What is the prefix for 6 when naming covalent compounds?

• Hexa

• Hepta

• Septa

• Tetra

Diatomic molecules

When not combined with other elements, they always have a subscript of 2

H₂, N₂, F₂, O₂, I₂, Cl₂, Br₂

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​For naming, just say element name. Ex. Cl₂ = Chlorine Gas

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Ionic and Covalent!!

Some text here about the topic of discussion

Fill in the Blank

Name the molecule.

PF₅

Multiple Choice

Name Fe(NO₃)₃

• Iron (III) Nitrate
• Iron (III) Nitride
• Iron (VI) Nitrate
• Iron Nitrate

Fill in the Blank

Name the molecule.

NCl₃

Multiple Choice

copper (II) hydroxide?

• CuOH
• Cu(OH)₂
• Cu₂OH
• Cu₂O

Fill in the Blank

Name the molecule.

P₄O₇

Multiple Choice

Bromine monoflouride

• Br₁F₁
• BrF
• Br₂F
• BrF₂

Multiple Choice

What is the formula for calcium carbonate?

• CaCO
• CaCO₂
• CaCO₃
• Ca3CO3

Multiple Choice

Name NH₄Cl

• Nitrogen Hydrogen Chloride
• Nitrogen Tetrahydrogen Chloride
• Ammonium Chloride
• Ammounium Calcide

Multiple Choice

Valence electrons are shared

• Ionic bonds

• Covalent bonds

Multiple Choice

What is the correct name for C₄H₆?

• Carbon Hexahydride
• Pentacarbon Pentahydride
• Hexacarbon Tetrahydride
• Tetracarbon Hexahydride

Multiple Choice

What is the formula for lithium acetate?

• LiAc
• LiCHO
• LiC₂H₃O₂
• LiClO₃

Multiple Choice

What is the formula of Sodium oxide?

• Na2O
• NaO₂
• Na₂O₂
• Na₂O

Multiple Choice

What kind of bond does this show?

• Ionic

• Covalent

Multiple Choice

Valence electrons are transferred

• Ionic bonds

• Covalent bonds