Unit 9 Covalent Bonding Test Review

A covalent bond is formed between

• a metal and a nonmetal

• two nonmetals

• two metals

Covalent bonds are formed when electrons are ____ between atoms.

• lost or gained

• shared

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NGSS.HS-PS1-1

What is the attraction that holds a covalent bond together?

• A positive and negative ion

• A proton of one atom and a shared electron.

• A proton of one atom and a proton of another atom.

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NGSS.HS-PS1-3

Match the following

• Double Bond

• Two shared pairs of electrons

• Triple Bond

• One shared pair of electrons

• Single Bond

• Three shared pairs of electrons

Organize these options into the right categories

Groups:

(a) Nonpolar Covalent

,

(b) Polar Covalent

• 
• Occurs between atoms with different electronegativities

• Molecule has a positive and negative side

• 
• Electrons are shared equally

• Occurs between atoms with the same electronegatvity

• Electrons are NOT shared equqlly

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NGSS.HS-PS1-2

Electronegativity refers to an atom's ability to _____________ shared electrons in a covalent bond.

• attract

• donate

Tags

NGSS.HS-PS1-1

Which of these atoms is the most electronegative?

• Bromine

• Fluorine

• Hydrogen

• Potassium

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

More electronegative atoms in covalent compounds are likely to have:

• Partial positive charge

• Partial negative charge

Tags

NGSS.HS-PS1-1

In a polar covalent bond, the electrons gather around...

• The atom with the Greatest Electronegativity

• The atom with the Lowest Electronegativity

• Each atom Equally

• None of the Above

What is the correct name for C₄H₆?

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

Tags

NGSS.MS-PS1-1