Covalent Bonds Review

Front

H2O has how many covalent bonds?

Back

2

Front

What is the correct Lewis Dot Structure for ammonia (NH3)?

Back

The Lewis Dot Structure for NH3 shows nitrogen (N) in the center with three hydrogen (H) atoms bonded to it, and one lone pair of electrons on the nitrogen.

Front

How many total valence electrons are participating in bonding in NH3?

Back

8

Front

NH3 has how many lone pairs?

Back

1

Front

Covalent Bonds ______________ valence electrons.

Back

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Front

Define a covalent bond.

Back

A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms.

Front

What is a Lewis Dot Structure?

Back

A Lewis Dot Structure is a diagram that shows the bonding between atoms of a molecule and the lone pairs of electrons that may exist.

Front

What is the significance of lone pairs in covalent bonding?

Back

Lone pairs can affect the shape of the molecule and its reactivity.

Front

How do you determine the number of valence electrons in an atom?

Back

The number of valence electrons is determined by the group number of the element in the periodic table.

Front

What is the octet rule?

Back

The octet rule states that atoms tend to bond in such a way that they have eight electrons in their valence shell, achieving a stable electron configuration.