metals and nonmetals

Question 1

what is a physical property

Answer 1

The physical properties of an element describe how a substance behaves generally. It is a a characteristic of a substance that can be observed or measured.

Question 2

what is a chemical property

Answer 2

A chemical property is a characteristic of a particular substance that can be observed in a chemical reaction.

Question 3

name some properties of a metal

Answer 3

.normally good conductors of heat and
electricity
* shiny when cut
* malleable
* dense and sonorous
* most have high melting points

Question 4

name some properties of a non-metal

Answer 4

• often have properties the opposite of
  metals
• low boiling points, so are gases at room
  temperature
• poor conductors of electricity and heat
• dull in appearance
• low density
• brittle and not sonorous

Question 5

what type of property is melting and boiling points

Answer 5

physical

Question 6

what are the elements near the stepped line on the periodic table called

Answer 6

metalloids

their properties are in between metals and non-metals. most are shiny. they are semi-conductors of electricity.

Question 7

what is the product when a non-metal reacts with oxygen

Answer 7

an oxide

Question 8

write a word equation for sulphur reacting with oxygen

Answer 8

sulphur +oxygen -> sulphur dioxide

Question 9

what is the product when a metal reacts with oxygen

Answer 9

and oxide

Question 10

write a word equation for magnesium reacting with oxygen

Answer 10

magnesium + oxygen -> magnesium oxide