Quiz #3

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

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Ions are: 

• atoms with a positive or negative charge
• atoms with no charge
• atoms with ONLY a positive charge
• atoms with ONLY a negative charge

Silicon is a semiconductor and has properties of both metals and nonmetals. What type of element is Silicon? 

• Metal
• Nonmetal
• Metalloid
• Pretty

Tags

NGSS.HS-PS1-1

Iron is a good conductor, malleable and magnetic. What type of element is Iron? 

• Metal
• Nonmetal
• Metalloid
• Pretty

Tags

NGSS.HS-PS1-1

Metals have all of the following physical properties except __________.

• high conductivity
• shiny luster
• malleable
• brittle

Tags

NGSS.5-PS1-3

Metalloids _____________

• have no properties of metals.
• have no properties of nonmetals.
• have some properties of both metals and nonmetals.
• none of the above

Which elements are to the right of the zig zag?

• metals

• nonmetals

• metalloids

Tags

NGSS.HS-PS1-1

Which of the metals was the most reactive?

• iron

• lithium

• sodium

• potassium

How is an atom and ion different?

• An atom has a charge and an ion has no charge.

• An atom has no charge and an ion has a charge.

What charge will result if an ion gains 3 electrons?

• +3

• +1

• -3

• -2