Periodic Table

Front

What do the horizontal rows on the periodic table tell us?

Back

The number of orbitals.

Front

What substance is referred to as a SEMICONDUCTOR?

Back

Metalloid.

Front

True or False: The majority of elements on the Periodic Table of Elements are metals.

Back

True.

Front

Which element is a non-metal? (Options: Arsenic, Mercury, Krypton, Potassium)

Back

Krypton.

Front

Which element is a metal? (Options: Hydrogen, Neon, Oxygen, Calcium)

Back

Calcium.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What are groups in the periodic table?

Back

Vertical columns that categorize elements with similar properties.

Front

What are periods in the periodic table?

Back

Horizontal rows that indicate the number of electron shells.

Front

Define 'metalloid'.

Back

Elements that have properties of both metals and nonmetals.

Front

What is the most abundant element in the universe?

Back

Hydrogen.