Metals and non-metals

Question 1

where on the periodic table are metals located?

Answer 1

on the left of the steps of stairs going from boron to astatine

Question 2

properties of metals (6)

Answer 2

lustrous (gold)
ductile (can be stretched and made into wire)
malleable (can be beaten into a shape eg steel of crashed car fixed)
conductors of heat and electricity (pots, cicuits)
strong (bridges)

Question 3

define metal

Answer 3

an element that tends to lose electrons and form positive ions eg copper

Question 4

properties of non metals (3)

Answer 4

• gases
• not conductors of heat or electricity
• brittle

Question 5

define non-metal

Answer 5

an element that tends to gain electrons and form negative ions eg sulfur

Question 6

how to test for metal

Answer 6

see if it conducts electricity in a circuit (crocodile clips)

Question 7

define alloy

Answer 7

mixture of metals eg bronze : copper+tin , steel=iron+carbon

Question 8

what’s rusting

Answer 8

a chemical reaction in which iron is changed into a new substance (rust)

Question 9

investigate conditions needed for rusting

Answer 9

3 test tubes with nails in each
calcium chloride to remove water from air
air and water both needed

Question 10

3 ways to prevent rust

Answer 10

painting, oiling, galvanising(coating with zinc) : all form a layer and prevent air and water coming in contact