Covalent Bonding and Electron Dot Structures

Front

What is a covalent bond?

Back

A covalent bond is a chemical bond formed when two nonmetals share one or more pairs of electrons.

Front

How many shared pairs of electrons are in a molecule of sulfur difluoride (SF2)?

Back

2 shared pairs of electrons.

Front

What types of atoms typically form covalent bonds?

Back

Covalent bonds are typically formed between two nonmetals.

Front

What is the molecular formula for silicon tetrafluoride?

Back

SiF4.

Front

What is the appropriate molecular formula for a compound with 3 carbon, 4 hydrogen, and 2 fluorine atoms?

Back

C3H4F2.

Front

How many double bonds are present in the carbonate ion (CO3^2-)?

Back

1 double bond.

Front

What is an electron dot structure?

Back

An electron 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 shared electron pairs in covalent bonding?

Back

Shared electron pairs create a stable balance of attractive and repulsive forces between atoms.

Front

What is the difference between a single bond and a double bond?

Back

A single bond involves one shared pair of electrons, while a double bond involves two shared pairs of electrons.

Front

What is the general rule for determining the number of bonds an atom can form?

Back

The number of bonds an atom can form is typically equal to the number of electrons it needs to gain or lose to achieve a full outer shell (octet rule).