Atomic Structure Quiz

What is an atom?

• A type of subatomic particle

• A molecule that interacts with other molecules

• A building block of matter that retains the chemical properties of an element

• A form of energy

Which subatomic particle has a positive charge?

• Neutron

• Electron

• Photon

• Proton

Where are protons and neutrons located in an atom?

• In the electron cloud

• In the atomic mass

• In the outer shell

• In the nucleus

What determines the atomic number of an element?

• The atomic mass

• The number of neutrons

• The number of electrons

• The number of protons

What is the charge of an electron?

• 0

• -1

• +1

• +2

What is the relative mass of a proton in atomic mass units (amu)?

• 1.6 x 10-19 amu

• 0.000549 amu

• 1.008665 amu

• 1.007277 amu

What is the center of an atom called?

• Electron cloud

• Neutron

• Nucleus

• Proton

How do you calculate the atomic mass of an element?

• By adding the number of electrons and protons

• By adding the number of protons and neutrons

• By looking at the atomic number

• By adding the number of neutrons and electrons

What does the atomic number of an element represent?

• The number of protons in the nucleus

• The number of neutrons in the nucleus

• The total number of protons and neutrons in the nucleus

• The total number of protons and electrons in an atom

Which of the following is true about isotopes?

• They have different atomic numbers but the same mass number

• They have the same atomic number but different mass numbers

• They have different numbers of electrons but the same number of protons

• They are always ions