Covalent Bonding Mini-Practice 2025

Front

What is a covalent bond?

Back

A covalent bond is a type of chemical bond formed when two atoms share electrons.

Front

What does an electron dot diagram represent?

Back

An electron dot diagram represents the valence electrons of an atom and how they are shared or transferred in a chemical bond.

Front

What is a double bond?

Back

A double bond is a type of covalent bond where two pairs of electrons are shared between two atoms.

Front

What is the formula for ammonia?

Back

The correct formula for ammonia is NH₃.

Front

How many pairs of electrons are shared in a single bond?

Back

In a single bond, one pair of electrons is shared between two atoms.

Front

What is the Lewis dot structure for fluorine (F₂)?

Back

The correct Lewis dot structure for fluorine (F₂) shows two fluorine atoms each with three lone pairs and one shared pair of electrons.

Front

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

Back

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

Front

What is the significance of valence electrons in covalent bonding?

Back

Valence electrons are the outermost electrons of an atom and are involved in forming covalent bonds.

Front

What is a molecule?

Back

A molecule is a group of two or more atoms bonded together by covalent bonds.

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.