Understanding Atoms and Elements

What are the three types of particles that make up an atom?

• Protons, neutrons, and photons

• Protons, electrons, and neutrons

• Electrons, neutrons, and quarks

• Protons, electrons, and quarks

What determines the different properties of elements like gold, carbon, and oxygen?

• The number of electrons

• The number of neutrons

• The number of protons

• The number of atoms

What is the atomic number of helium?

• 1

• 2

• 3

• 4

What is the role of electrons in an atom?

• They hold the nucleus together

• They provide mass to the atom

• They create an electron cloud around the atom

• They determine the atomic number

What is the electric force in an atom?

• The force that holds neutrons together

• The force between protons and electrons

• The force that repels electrons

• The force that attracts neutrons

Why do atoms need neutrons?

• To provide a negative charge

• To balance the number of electrons

• To prevent protons from pushing each other out of the atom

• To increase the atomic number

What is the strong nuclear force?

• The force that attracts electrons to the nucleus

• The force that holds the nucleus together

• The force that repels protons

• The force that increases atomic mass

What would happen if there were no neutrons in atoms?

• All elements would become helium

• All elements would become carbon

• All elements would become hydrogen

• All elements would become oxygen

How many protons does the element Oganesson have?

• 116

• 117

• 118

• 119

What is the charge of an electron?

• Positive

• Negative

• Neutral

• Variable