Atoms & Periodic Table Quiz

What is the smallest particle of an element that retains the properties of that element?

• Proton

• Atom

• Cell

• Molecule

What is the total number of protons and neutrons in an atom's nucleus called?

• Electron number

• Atomic number

• Mass number

• Isotope number

Which subatomic particle has a negative charge?

• Electron

• Photon

• Neutron

• Proton

What is the term for the number of protons in the nucleus of an atom?

• Nuclear count

• Proton number

• Atomic mass

• Atomic number

Tags

NGSS.HS-PS1-7

What is the term for the average mass of an element's atoms, which takes into account the different isotopes and their relative abundance?

• Atomic weight

• Isotopic weight

• Atomic number

• Elemental mass

What is the term for the number of electrons in an atom's outermost shell?

• Valence electrons

• Shell number

• Atomic number

• Electron number

What is the term for an atom that has the same number of protons but a different number of neutrons?

• Isotope

• Ion

• Compound

• Molecule

What is the term for an atom that has gained or lost one or more electrons?

• Ion

• Isotope

• Compound

• Molecule

What is the term for the center of an atom where protons and neutrons are located?

• Nucleus

• Electron shell

• Orbit

• Proton cloud

What is the term for a pure substance made up of two or more different types of atoms bonded together?

• Compound

• Element

• Isotope

• Ion

Tags

NGSS.MS-PS1-1