Review over Ionic Bonds, Covalent Bonds, Lewis Structures

Front

What is an ionic bond?

Back

An ionic bond is a type of chemical bond formed through the electrostatic attraction between oppositely charged ions, typically between a metal and a non-metal.

Front

What is a covalent bond?

Back

A covalent bond is a type of chemical bond where two atoms share one or more pairs of electrons, usually between non-metal atoms.

Front

Define Lewis structure.

Back

A Lewis structure is a diagram that represents 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 Lewis structures?

Back

Lone pairs are pairs of valence electrons that are not shared with another atom. They can affect the shape and reactivity of molecules.

Front

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

Back

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

Front

What is the formula for magnesium chloride?

Back

The formula for magnesium chloride is MgCl₂.

Front

What is the correct formula for silicon tetrachloride?

Back

The correct formula for silicon tetrachloride is SiCl₄.

Front

What is the name of the compound AgF?

Back

The name of the compound AgF is silver fluoride.

Front

How many lone pairs does NH₃ have?

Back

NH₃ has 1 lone pair.

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.