Properties Withhin Groups

Question 1

Alkali metals similarities

Answer 1

All metals with a silver gray colour
All extremely soft and can be cut with a knife
Ductile and malleable and conduct electricity and heat
All melt below 170 degrees Celsius so low melting points
All react easily with air and water

Question 2

Alkali metals differences

Answer 2

From lithium one there’s is an increase in density

As well the melting point decreases and become softer and easier to cut

Question 3

Halogens similarities

Answer 3

All are non metals
Each has a noticeable colour
With slight heating bromine and iodine join as all gases
All very reactive

Question 4

Halogens differences

Answer 4

The colours grow in intensity

Melting points gradually increase

Question 5

Nobel gases similarities

Answer 5

All naturally colourless gases
When passed through an electric current they glow with bright colours
Not reactive unless specially conditions

Question 6

Novel gases differences

Answer 6

Density increases