Periodic Table

Front

What are the horizontal rows on the periodic table called?

Back

Periods

Front

What group number is the noble gases?

Back

18

Front

Which group is the alkali metals?

Back

1

Front

How many electrons can the 2nd energy level hold?

Back

8

Front

This element has two valence electrons and two energy levels?

Back

Beryllium (Be)

Front

What are the vertical columns on the periodic table called?

Back

Groups or families

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the significance of the periodic law?

Back

It states that the properties of elements are a periodic function of their atomic numbers.

Front

What are transition metals?

Back

Elements found in groups 3-12 of the periodic table, known for their ability to form variable oxidation states.

Front

What is the maximum number of electrons in the first energy level?

Back

2