isotopes, and ions

What is the role of protons in an atom?

• They control the type of atom

• They control the size of the atom

• They control the charge of the atom

• They control the stability of the atom

What is an isotope?

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

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

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

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

Do all atoms have natural isotopes?

• Yes

• No

• Only some atoms have isotopes

• Isotopes are man-made

What are the physical properties of oxygen?

• Colorless, odorless, gas

• Red, smelly, liquid

• Yellow, odorless, solid

• Blue, smelly, gas

What happens when the nucleus of an atom decays over time?

• It releases energy over time

• It transforms into a different element

• It becomes radioactive

• It loses its protons

What are ions?

• Atoms that have gained or lost electrons

• Atoms that have gained or lost protons

• Atoms that have gained or lost neutrons

• Atoms that have gained or lost energy

What is the charge of an anion?

• Positive

• Negative

• Neutral

• Variable

What is the charge of a cation?

• Positive

• Negative

• Neutral

• Variable

What is the role of electrons in atoms?

• Determine the size of the atom

• Determine the charge of the atom

• Determine the stability of the atom

• All of the above

What is the atomic number of an atom?

• The number of protons in the nucleus

• The number of neutrons in the nucleus

• The number of electrons in the nucleus

• The number of isotopes in the nucleus