Atomic Structure Quiz

What type of particles have no charge?

• Protons

• Electrons

• Neutrons

• Molecules

Which particles are positively charged?

• Neutrons

• Electrons

• Protons

• Molecules

What is the center of an atom called?

• Electron

• Proton

• Nucleus

• Molecule

What is the maximum number of valence electrons in the outermost shell of an atom?

• 2

• 4

• 6

• 8

Which of the following is NOT one of the 5 key elements mentioned?

• Hydrogen

• Oxygen

• Carbon

• Helium

What is a molecule?

• A single atom

• Two or more atoms that are chemically bonded

• A positively charged particle

• A negatively charged particle

What does an atom's atomic number tell you?

• The number of neutrons

• The number of electrons

• The number of protons

• The atomic mass

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

• Atomic number

• Atomic mass

• Mass number

• Isotope number

What are isotopes?

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

• Atoms with different number of protons and neutrons

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

• Atoms with different chemical properties

What is a homogeneous mixture?

• A mixture where you can see separate parts

• A mixture that is evenly mixed

• A mixture that is unevenly mixed

• A mixture of only one element