Atomic Structure Questions

Which of the following best defines an atom?

• The smallest particle of a compound that retains its chemical properties

• The smallest particle of an element that retains its chemical properties

• A combination of two or more elements

• A particle with a positive charge only

What is the charge of an electron?

• Positive (+)

• Neutral (0)

• Negative (–)

• Both positive and negative

Tags

NGSS.MS-PS2-3

Where are electrons located in an atom?

• Inside the nucleus

• Orbiting around the nucleus in energy levels

Which statement about protons is correct?

• They are negatively charged and found in the nucleus

• They are positively charged and found in the nucleus

• They are neutral and found in energy levels

• They are positively charged and orbit the nucleus

Where are neutrons found in an atom?

• In the electron cloud

• In the outermost energy level

• In the nucleus

• Floating freely outside the atom

What is the electric charge of a neutron?

• Positive

• Negative

• Neutral

Which statement best defines matter?

• Anything that has mass and occupies space

• Anything that produces light or heat

• Anything that has energy but no mass

• Any substance that is visible

Tags

NGSS.MS-PS1-5

What is energy?

• Anything that has mass and volume

• The ability to do work or cause change

• Only the heat produced by objects

• Matter in motion

Tags

NGSS.MS-PS3-5

What is the correct definition of chemistry?

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-1

NGSS.MS-PS1-2

Which combination correctly matches the particles with their charge and location?

• Proton – negative – energy level

• Neutron – neutral – nucleus

• Electron – positive – nucleus

• Proton – neutral – electron cloud