What is the smallest unit of matter?

• Molecule
• Atom
• Electron
• Neutron

Which subatomic particle is the least massive?

• Proton
• Neutron
• Electron
• Quark

What type of electrical charge do electrons carry?

• Positive
• Neutral
• Negative
• None

Which subatomic particle carries a positive electrical charge?

• Neutron
• Electron
• Proton
• Photon

About how much more massive are protons compared to electrons?

• About 1800x

• About 1000x

• About 500x

• About 5000x

What is the electrical charge of neutrons?

• Positive
• Negative
• Neutral
• None of the above

In a basic, balanced atom, what is the relationship of protons to electrons?

• Protons are more than electrons
• Protons are less than electrons
• Protons are equal to electrons
• Protons and electrons are not related

If an atom has 6 protons, how many electrons and neutrons should it have if it is balanced?

• 6 electrons and 6 neutrons
• 6 electrons and 7 neutrons
• 7 electrons and 6 neutrons
• 6 electrons and 8 neutrons

Tags

NGSS.MS-PS1-1

How are atoms organized in the Periodic Table of Elements?

• By their atomic number
• By their atomic weight
• By their color
• By their size

What is the Periodic Table used for?

• It is used to measure mass

• It is used to show reactions

• It is used for playing games
• It is used to display all of the known elements