Atomic Theory & Isotopes

What are the basic units of matter?

• Molecules

• Atoms

• Cells

• Compounds

Tags

NGSS.MS-PS1-1

Which of the following is NOT a subatomic particle?

• Proton

• Neutron

• Electron

• Molecule

How many main subatomic particles compose an atom?

• Two

• Three

• Four

• Five

Tags

NGSS.MS-PS1-1

What are the three main subatomic particles that make up an atom?

• Protons, Neutrons, Electrons

• Protons, Neutrons, Photons

• Electrons, Photons, Neutrons

• Protons, Electrons, Quarks

Tags

NGSS.MS-PS1-1

Where are protons located in an atom?

• In the electron cloud

• In the nucleus

• In the outer shell

• In the atomic orbitals

Tags

NGSS.MS-PS1-1

What is the charge of a proton?

• Negative (-1)

• Neutral (0)

• Positive (+1)

• Double positive (+2)

Tags

NGSS.MS-PS2-3

What is the relative mass of a proton?

• 0 atomic mass units (amu)

• 1 atomic mass unit (amu)

• 2 atomic mass units (amu)

• 0.5 atomic mass units (amu)

What does the number of protons in an atom determine?

• The atom's charge

• The atom's mass

• The element's identity

• The atom's volume

What is the relationship between the number of protons and the atomic number?

• Number of protons is double the atomic number

• Number of protons is half the atomic number

• Number of protons equals the atomic number

• Number of protons is unrelated to the atomic number

Where are neutrons located in an atom?

• In the electron cloud

• In the nucleus

• In the outer shell

• In the atomic orbitals

Tags

NGSS.MS-PS1-1