Subatomic Particles Quiz:Understanding Atoms and Their Structure

What are atoms?

• Atoms are the building blocks for everything.

• Atoms are composed of only protons and neutrons.

• Atoms are negatively charged particles.

• Atoms are the same as molecules.

Which subatomic particle is negatively charged?

• Proton

• Neutron

• Electron

• Nucleus

What is the electron cloud?

• A dense region in the nucleus

• A rapidly moving cloud of electrons surrounding the nucleus

• A collection of protons and neutrons

• A positively charged region

What is the charge of the nucleus?

• Negative

• Neutral

• Positive

• Variable

What is the relative weight of a proton?

• 0 amu

• 1 amu

• 2 amu

• 0.5 amu

Which subatomic particle is located in the nucleus and has no charge?

• Proton

• Neutron

• Electron

• Positron

What defines an isotope of an element?

• Same number of electrons, different number of protons

• Same number of protons, different number of neutrons

• Same number of neutrons, different number of electrons

• Same number of protons and neutrons

What contributes most to the mass of an atom?

• Electron cloud

• Protons and neutrons in the nucleus

• Electrons in the outer shell

• The empty space within the atom

What is the relative weight of an electron?

• 1 amu

• 0 amu

• 2 amu

• 0.5 amu

What is the primary reason for the size (volume) of an atom?

• The nucleus

• The electron cloud

• The protons

• The neutrons