Periodic Table Quiz

Which of the following best describes the atomic number of an element?

• The sum of the number of protons and electrons in an atom

• The number of neutrons in the nucleus of an atom

• The number of protons in the nucleus of an atom

• The total mass number of an atom

What is the chemical symbol for Hydrogen?

• H

• Hy

• Hd

• Hg

Which group in the periodic table is known for having elements with a full outer shell of electrons, making them very stable?

• Alkali metals

• Halogens

• Noble gases

• Transition metals

What is a common property of elements in the same group on the periodic table?

• They have the same number of protons.

• They have similar chemical and physical properties.

• They have the same atomic mass.

• They are all metals.

Which of the following elements is a halogen?

• Helium

• Iron

• Chlorine

• Gold

What characteristic is most common among elements classified as metals?

• They are good insulators of heat and electricity.

• They are generally gases at room temperature.

• They are malleable and good conductors of electricity.

• They tend to gain electrons during chemical reactions.

Which of the following is NOT a property of noble gases?

• They are highly reactive.

• They have a full valence shell.

• They are colorless and odorless.

• They exist as gases under standard conditions.

What is the chemical symbol for Sodium?

• S

• Sa

• Na

• So

Which group of elements is known for being highly reactive and forming salts when reacting with metals?

• Noble gases

• Halogens

• Alkali metals

• Alkaline earth metals

What is the term used to describe the vertical columns in the periodic table?

• Periods

• Groups

• Rows

• Families