Unit 3: Atomic Structure Review

The identity of an element is determined by its: SELECT ALL THAT APPLY

• mass number

• atomic number

• number of neutrons

• atomic mass

• number of protons

Which statement is true?

• the proton and the neutron have opposite charges

• the proton and the electron have opposite charges

• the electron and the neutron are found in the nucleus

• atoms gain or lose protons when they form ions

• Protons are found outside the nucleus

Which statement is true?

• the proton and the neutron have opposite charges

• the number of protons in an element is the same for all neutral atoms of that element

• the number of electrons in an element is the same for all neutral atoms of that element

• atoms gain or lose protons when they form ions

• the number of neutrons in an element is the same for all neutral atoms of that element

Which subatomic particle(s) has/have mass of approximately 1 amu?

• Proton

• Neutron

• Electron

Which subatomic particle has the smallest mass?

• Proton

• Neutron

• Electron

What is the charge of a neutron?

• Positive

• Negative

• Neutral

Which subatomic particle is found in the nucleus of an atom along with protons?

• Electron

• Neutron

• Photon

Which statement is true?

• Electrons are positively charged particles

• Neutrons have no charge

• Protons are negatively charged particles

• Atoms lose electrons to form anions

• Neutrons are found outside the nucleus

Which statement is true?

• Electrons are found in the nucleus

• Protons and electrons have the same mass

• Neutrons and protons have similar masses

• Atoms gain electrons to form cations

• Protons are found in the electron cloud

Which statement is true?

• Electrons have more mass than protons

• Neutrons are negatively charged

• Protons are found in the nucleus

• Atoms lose neutrons to form ions

• Electrons are found in the nucleus