S1-2024 Practice: Periodic Table, Isotopes (use Periodic Table)

Front

What group does the element with atomic number 19 belong to?

Back

Alkali metal.

Front

What type of element is chlorine?

Back

Halogen.

Front

How many protons are in sulfur-34?

Back

16 protons.

Front

How many electrons does magnesium-26 have?

Back

12 electrons.

Front

How many neutrons are in sulfur-34?

Back

18 neutrons.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is an isotope?

Back

Atoms of the same element with different numbers of neutrons.

Front

What is the significance of the Periodic Table?

Back

It organizes elements based on their atomic number and properties.

Front

What are alkali metals?

Back

Elements in group 1 of the Periodic Table, highly reactive.

Front

What are noble gases?

Back

Elements in group 18 of the Periodic Table, known for their lack of reactivity.