Exploring Atoms and Their Properties

Which of the following is a subatomic particle?

• Molecule

• Proton

• Compound

• Element

What is the atomic number of an element?

• The number of protons in an atom

• The number of neutrons in an atom

• The total number of protons and neutrons in an atom

• The number of electrons in an atom

Which state of matter has a definite shape and volume?

• Solid

• Liquid

• Gas

• Plasma

Which of the following is a property of metals?

• Brittle

• Poor conductor of electricity

• Malleable

• Dull

Which of the following is a property of non-metals?

• Lustrous

• Good conductor of heat

• Ductile

• Poor conductor of electricity

What is the mass number of an atom?

• The number of protons in an atom

• The total number of protons and electrons in an atom

• The total number of protons and neutrons in an atom

• The number of neutrons in an atom

Which of the following is an example of a compound?

• Oxygen

• Water

• Helium

• Nitrogen

Which subatomic particle has a negative charge?

• Proton

• Neutron

• Electron

• Nucleus

Which of the following is a characteristic of elements?

• Made up of two or more types of atoms

• Cannot be broken down into simpler substances

• Always found in a gaseous state

• Always found in a liquid state

What is the charge of a neutron?

• Positive

• Negative

• Neutral

• Variable