Year 8 Atoms

Which of these is NOT a metal?

• helium

• lithium

• sodium

• potassium

Which of these is a property of metals?

• dull

• brittle

• thermal insulators

• magnetic

TRUE or FALSE: All metals are magnetic

• TRUE

• FALSE

Which of these metals is NOT magnetic?

• iron

• zinc

• nickel

• cobalt

Which of these properties makes metals good for making frying pans?

• high melting points and good thermal conductors

• high melting points and good thermal insulators

• low melting points and good thermal conductors

• high melting points and good electrical conductors

Which of these properties makes plastics good for making saucepan handles?

• good thermal conductors

• good thermal insulators

• good electrical insulators

• good electrical conductors

Metals are ductile; what does that mean?

• they can be bent into shape

• they ring when they are hit

• they can be flattened into sheets

• they can be drawn into wires

What makes copper particularly good for making electrical wires?

• it has a very high melting point

• it's an excellent electrical conductor

• it was a nice colour

• it is very flexible

How many protons does copper have?

• 29

• 63

• 64

• 35

How many neutrons does sodium have?

• 11

• 22

• 23

• 12