Periodic Table CW

In the modern periodic table elements are arranged by:

• atomic mass
• atomic number
• valence electrons
• number of isotopes

Each column(up&down) in the periodic table is called a 

• period
• group
• cluster
• unit

The periodic table has __ periods.

• 18
• 8
• 2
• 7

An element's identity is determined by the number of

• electrons.
• protons.
• neutrons.
• valence.

Group 18 elements are known as the _____ _____ and have full valence shells.

• royal gases.
• supreme solids.
• noble gases.
• legit liquids.

Elements in the same ________ are more chemically similar.

• group
• period
• club
• table

Tags

NGSS.HS-PS1-1

What is the name of Group 2A?

• Alkali metals
• Alkaline-earth metals
• Transition metals
• Halogens

Tags

NGSS.HS-PS1-1

Period 1 of the periodic table is composed of

• one element

• two elements

• eight elements

Elements in groups 1 and 2 are called--------------------- elements

• s-block

• p-block

• d-block

• f-block

For any element in the periodic table, the period number is equal to

• the number of valence electrons

• the atomic number

• the number of energy levels occupied by electrons

• the mass number