RPAScience GCSE Covalent Bonds and Structures

How do covalent bonds form?

• Donating & receiving valence e- between atoms.
• Opposite slight charges attract each other between compounds.
• Scientists are still not sure how they form.
• Sharing valence e- between atoms.

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What two types of atoms make a covalent bond?

• 2 Nonmetals
• 1 Nonmetal and 1 Metal
• 2 Metals
• 2 Noble Gases

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What type of bond is shown in this image?

• Ionic
• Polar Covalent
• Nonpolar Covalent
• Van der Waals Force

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Name the following compound: 
CO₂

• monocarbon dioxide
• carbon oxide
• carbon dioxide
• oxygen carbonide

Compared to ionic compounds, covalent compounds generally have...

• stronger chemical bonds

• poor conductivity

• a high melting point

• lower densities

Compared to ionic compounds, covalent compounds generally have...

• good conductivity

• greater densities

• more chemical bonds

• a low boiling point

The chemical bond formed when two atoms share electrons  is called a(an) IONIC bond. 

• True
• False

Covalent bonds usually form when a nonmetal combines with a(an) METAL.

• True
• False

A(n) ION is a neutral group of atoms joined by covalent bonds.

• True
• False

The forces between molecules are much STRONGER than the forces between ions. 

• True
• False

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