Atomic Structure

What are the three main subatomic particles in an atom?

• Protons, neutrons, and electrons

• Protons, neutrons, and photons

• Electrons, photons, and quarks

• Neutrons, quarks, and gluons

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Where do protons and neutrons reside in an atom?

• In the electron cloud

• In the nucleus

• In the outer shell

• In the atomic orbitals

What determines an atom's atomic number?

• The number of electrons

• The number of neutrons

• The number of protons

• The number of shells

What is the role of electrons in an atom?

• They determine the atomic mass

• They orbit the nucleus in a cloud-like region

• They reside in the nucleus

• They form the atomic core

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What is the nucleus of an atom described as?

• Light and spacious

• Dense and small

• Large and empty

• Heavy and vast

What does the sum of protons and neutrons in the nucleus generally equal?

• The atomic number

• The atomic mass

• The electron count

• The energy level

What is the space around the nucleus occupied by?

• Protons

• Neutrons

• Electrons

• Photons

What are the paths called where electrons orbit the nucleus?

• Orbits

• Shells

• Layers

• Circles

What is the outermost shell of an atom involved in?

• Nuclear reactions

• Chemical bonding

• Atomic decay

• Energy absorption

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What is the atomic structure primarily composed of?

• Molecules

• Subatomic particles

• Chemical bonds

• Energy levels

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