Covalent Bonding Practice 1

Front

What is a covalent bond?

Back

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

Front

What is the molecular formula for phosphorus trichloride?

Back

PCl₃

Front

Which two elements are most likely to form a covalent bond?

Back

Phosphorus (P) and Fluorine (F) are most likely to form a covalent bond.

Front

What is the correct name of XeF₄?

Back

Xenon tetrafluoride.

Front

What causes a polar molecule to form?

Back

Electrons spending more time around one side of a molecule causing positive and negative charges to form.

Front

How many electrons are shared in a double bond?

Back

4 electrons are shared in a double bond.

Front

What is the difference between a polar and nonpolar covalent bond?

Back

A polar covalent bond has unequal sharing of electrons, while a nonpolar covalent bond has equal sharing of electrons.

Front

What is the octet rule?

Back

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

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 significance of electronegativity in covalent bonding?

Back

Electronegativity is a measure of an atom's ability to attract shared electrons; it determines the polarity of a bond.