Quiz on Nuclear Stability and the Periodic Table

What is the nucleus of an atom?

• The solid center where most mass is concentrated

• The outer shell of an atom

• The area where electrons orbit

• The part that contains only neutrons

Who created the first widely recognized periodic table?

• Niels Bohr

• Albert Einstein

• Dmitri Mendeleev

• Marie Curie

What does the atomic number represent?

• The number of neutrons

• The mass of the element

• The total number of nucleons

• The number of protons

Which of the following is a characteristic of metals?

• Located on the right side of the periodic table

• Good conductors of electricity

• Poor conductors of electricity

• Diverse properties

What is an isotope?

• Elements with the same number of protons but different neutrons

• Elements that have the same mass number

• Elements with different atomic numbers

• Elements that are radioactive

What is the role of the strong nuclear force?

• To attract electrons to the nucleus

• To overcome electrostatic repulsion between protons

• To create isotopes

• To stabilize the atomic mass

Which element has the atomic number 1?

• Lithium

• Oxygen

• Hydrogen

• Helium

What happens during beta minus decay?

• An electron is absorbed

• A proton turns into a neutron

• A neutron turns into a proton

• A positron is emitted

What is the maximum number of protons for stable nuclei?

• 82

• 100

• 120

• 92

Which of the following is a property of nonmetals?

• High density

• Malleable

• Diverse properties

• Good conductors of heat