Quiz on Chemical Bonds and Isotopes

What type of bond is formed when electrons are shared between atoms?

• Ionic bond

• Covalent bond

• Hydrogen bond

• Metallic bond

What is the strongest type of bond in biological molecules?

• Covalent bond

• Ionic bond

• Hydrogen bond

• Van der Waals forces

Tags

NGSS.MS-PS1-1

Which of the following is true about ionic bonds?

• They involve the sharing of electrons.

• They occur between two nonmetals.

• They involve the transfer of electrons.

• They are weaker than hydrogen bonds.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

NGSS.HS-PS1-3

In a molecule of water (H₂O), the bonds between hydrogen and oxygen are:

• Ionic bonds

• Nonpolar covalent bonds

• Polar covalent bonds

• Metallic bonds

Tags

NGSS.HS-PS1-1

What is an ion?

• An atom with a full outer electron shell

• An atom or molecule with a net electric charge

• A molecule that contains both carbon and hydrogen

• A particle with no protons

What is the charge of a cation?

• Positive

• Negative

• Neutral

• Varies depending on the atom

What makes isotopes of the same element different from each other?

• Number of protons

• Number of neutrons

• Number of electrons

• Atomic number

If an element has 7 protons and 8 neutrons, what is its mass number?

• 7

• 8

• 15

• 14

If an isotope has 17 protons and 18 neutrons, what is its mass number?

• 17

• 35

• 18

• 34

Why do elements bond?

• to be friends

• to create a new element

• to become stable

• to get bigger