Periodic Table 8th Grade

Front

Why is water NOT on the periodic table?

Back

It is a compound, not an element.

Front

What group do Li, Na, and K belong to?

Back

Group 1 (alkali metals) - they have 1 valence electron.

Front

Which group is the largest among metals, semimetals, nonmetals, and noble gases?

Back

Metals.

Front

What is each column in the periodic table called?

Back

Group.

Front

Which two families on the periodic table react aggressively?

Back

Alkali metals and halogens.

Front

What are the main categories of elements in the periodic table?

Back

Metals, nonmetals, and metalloids.

Front

What is the atomic number?

Back

The number of protons in the nucleus of an atom.

Front

What is a chemical symbol?

Back

A one or two-letter abbreviation for an element.

Front

What are noble gases?

Back

Elements in Group 18 that are inert and do not react easily.

Front

What is the significance of valence electrons?

Back

They determine how an element reacts chemically.