The atomic number tells us the number of ____________?

• Neutrons
• Protons
• Electrons

Families or Groups are the vertical columns on the periodic table. How many Families/Groups are there?

• 18
• 7
• 12
• 20

Elements in the same family have similar _______________.

• Protons
• Physical and Chemical Properties
• Shape
• Size

Tags

NGSS.HS-PS1-2

The atomic mass is the ______________ + ____________ in the atom.

• neutrons + electrons
• protons + electrons
• protons + neutrons
• electrons

Metals are ___________.

• Good Conductors of heat and electricity
• Noble Gasses 
• Bad Conductors of heat and electricity
• sometimes a gas

Non-Metals are found ____________________.

• To the left of the stairs
• To the right of the stairs
• Includes only the elements touching the stairs

Metalloids have ___________________

• Only properties of a metal
• Only properties of a non-metal
• Can have properties of both metals and non-metals

Ductile means and material can be drawn into a wire. Which type of element can do this?

• Metals
• Non-Metals
• Metalloids

Brittle means easily broken. Which type of element does this describe?

• Metal
• Non-metal
• Metalloid

Periods are the rows of the periodic table. How many are there?

• 7 
• 18
• 12
• 20