Ionic vs Covalent Bonding and Counting Atoms

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds occur between metals and non-metals, involving the transfer of electrons, while covalent bonds occur between non-metals, involving the sharing of electrons.

Front

How do you determine the number of atoms in a chemical formula like 4CF₂Cl₂?

Back

Count the coefficients and subscripts: C = 4, F = 8 (2 per F, 4 total), Cl = 8 (2 per Cl, 4 total).

Front

What type of bond is formed between two non-metals?

Back

Covalent bond.

Front

What type of bond is formed between a metal and a non-metal?

Back

Ionic bond.

Front

Which elements would likely form a covalent bond?

Back

Elements like fluorine (F) and chlorine (Cl) would bond covalently.

Front

How many nitrogen atoms are in the compound (NH₄)₂CrO₄?

Back

There are 2 nitrogen atoms.

Front

What is a coefficient in a chemical formula?

Back

A coefficient indicates the number of molecules or formula units of a substance.

Front

What is a subscript in a chemical formula?

Back

A subscript indicates the number of atoms of an element in a molecule.

Front

What is the significance of electronegativity in bonding?

Back

Electronegativity determines how strongly an atom attracts electrons; it influences whether a bond will be ionic or covalent.

Front

What is a polar covalent bond?

Back

A polar covalent bond is a type of covalent bond where electrons are shared unequally between atoms, resulting in partial charges.