Investigation 2 Check-in

Name group 1 on the periodic table.

• alkali metals

• alkaline earth metals

• noble gases

  noble gases

• halogens

Which of the following is not a property of metals?

• brittle
• malleable
• lustrous
• conductive

Which elements have the most similar chemical properties?

• K and Na
• K and Ca
• K and Cl
• K and S

Name group 2 on the periodic table.

• alkali metals

• alkaline earth metals

• noble gases

• transition metals

Which group has the most reactive nonmetals?

• alkali metals
• noble gases
• metalloids
• halogens

An atom becomes _________ when it gains electrons.

• Positive

• Negative

• Neutral

Where are metals located on the periodic table?

• Blue
• Green
• Red

Where are the nonmetals located on the periodic table? 

• Blue
• Red
• Green

USE THE PERIODIC TABLE

How many valence electrons does Phosphorus have?

• 31

• 5

• 15

• 4

Valence electrons are: 

• Electrons farthest away from the nucleus
• Electrons closest to the nucleus
• Electrons that just come and go - they don't stay with the atom
• Electrons in the second shell