Exploring Atoms and Chemical Bonds

Which subatomic particle has a negative charge?

• Proton

• Electron

• Neutron

• Nucleus

Tags

VA.6.5.a

What is the center of an atom called?

• Electron

• Nucleus

• Proton

• Shell

Tags

VA.6.5.a

Which particle is found in the nucleus and has no charge?

• Electron

• Proton

• Neutron

• Ion

Tags

VA.6.5.a

Atoms of the same element have the same number of which particle?

• Neutrons

• Protons

• Electrons

• Nuclei

Tags

VA.6.5.b

Which of the following is true about atoms of different elements?

• They have the same number of protons.

• They have different numbers of protons.

• They have the same number of electrons.

• They have the same number of neutrons.

Tags

VA.6.5.b

What is formed when two or more atoms bond together?

• Element

• Compound

• Mixture

• Solution

Tags

VA.6.5.d

What holds atoms together in a molecule?

• Gravity

• Electrical forces (bonds)

• Magnetism

• Friction

Tags

VA.6.5.d

Which of the following is a chemical formula?

• H₂O

• Water

• Oxygen

• Salt

Tags

VA.6.5.e

What does the chemical formula CO₂?

• One carbon atom and two oxygen atoms

• Two carbon atoms and one oxygen atom

• One carbon atom and one oxygen atom

• Two carbon atoms and two oxygen atoms

Tags

VA.6.5.e

Which of the following is an example of a chemical equation?

• H₂ + O → H₂O

• H₂O

• Water

• O₂

Tags

VA.6.5.f