Revision For Exam

Question 1

Properties of metal and non metal

Answer 1

Metal: conducts electricity and heat, shiny, heavy, good strength, ductile, high melting point.
Non metal: dull, brittle, low weight, low melting point.

Question 2

Physical properties of group 1

Answer 2

Shiny grey, not heavy for size, can float, easy to cut with knife.

Question 3

Physical properties of group 7

Answer 3

Most do not conduct heat and have low melting point and are not metals.

Question 4

What are displacement reactions

Answer 4

Reactions when an element takes another element off of a compound because it is more reactive.

Question 5

What is a group?

Answer 5

A group is a numerous amount of things that share some sort of ability.

Question 6

What is a period?

Answer 6

A period is a horizontal row on the periodic table. They all start with an alkali metal and end with a noble gas.

Question 7

Chemical properties of group 1

Answer 7

They are very reactive toward water. The further down the table, the more reactive they get. They also are reactive to the air so are therefor concealed.

Question 8

Chemical properties of group 7

Answer 8

The further down the table the element, the higher the boiling point. They are vert reactive and have 7 electrons in the outer shell. They have different colours in flames when you set fire to them. They are non metals and some are solids, gasses or even liquids at room temperature.

Question 9

Trend in period 2

Answer 9

They are all gas at room temperature

Question 10

Physical properties of group 0 noble gases.

Answer 10

They are not heavy for their size and have low density. They can be used for balloons and airships.

Question 11

Chemical properties of group 0

Answer 11

Their atomic mass increases as you go down the table. They are not very reactable.