Unit 3: Chemical Bonds

Front

What type of bond is formed between metals that allows them to conduct electricity?

Back

Metallic bonds are formed between metal atoms, allowing them to conduct electricity.

Front

Ionic bonds form between which types of elements?

Back

Ionic bonds form between metals and nonmetals.

Front

What is the electric charge of an atom that gains an electron?

Back

An atom that gains an electron has an electric charge of -1.

Front

If an atom has 7 protons and 7 electrons, what is its electric charge?

Back

The electric charge is 0.

Front

Which of the following is NOT an ionic bond: NH3, KCl, K3N, NaCl?

Back

NH3 is NOT an ionic bond; it is a covalent bond.

Front

Define ionic bond.

Back

An ionic bond is a chemical bond formed through the electrostatic attraction between oppositely charged ions.

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 main characteristic of metallic bonds?

Back

Metallic bonds are characterized by a 'sea of electrons' that are free to move, allowing for conductivity.

Front

What happens to the electrons in ionic bonding?

Back

In ionic bonding, electrons are transferred from one atom to another, resulting in the formation of ions.

Front

What is the charge of a sodium ion (Na+) after it loses an electron?

Back

The charge of a sodium ion (Na+) is +1.