Physical Science Vocabulary Quiz

What is the smallest unit of an element?
A) Molecule
B) Atom
C) Ion
D) Compound

• molecule

• atom

• ion

• compound

Tags

NGSS.MS-PS1-1

Which subatomic particle has a positive charge?

• Electron

• Neutron

• Proton

• Photon

What is the center of an atom called?

• Electron Cloud

• Nucleus
  

• Orbital

• Shell

Which of the following is a neutral particle in an atom?

• Proton

• Neutron

• Electron

• Ion

What term describes the number of protons in an atom?

• Atomic Mass

• Atomic Number

• Isotope

• Molecule

Which of the following elements is a noble gas?

• Oxygen

• Nitrogen

• Helium

• Carbon

What is an ion?

• A neutral atom

• An atom with a positive or negative charge

• A molecule

• A compound

Which of the following best describes an isotope?

• Atoms with the same number of protons but different numbers of neutrons

• Atoms with different numbers of protons

• Molecules with the same number of atoms

• Elements in the same group

What does the atomic mass of an element represent?

• The total number of protons

• The average mass of all isotopes of an element

• The number of electrons

• The total number of neutrons

Which of the following elements is a metal?

• Chlorine

• Iron

• Neon

• Sulfur