periodic families

Question 1

What are the properties of alkali metals?

Answer 1

Family: 1
Silver-Grey, malleable, ductile, conduct
Low melting point (below 170oC)
Soft enough to cut with a knife
Highly reactive in air and water
As you move from top to bottom the elements get denser, melting point lowers, they get softer, and reactivity increases.

Question 2

What are the properties of alkaline earth metals?

Answer 2

Family: 2
they are all shiny, silvery-white, somewhat reactive metals at standard temperature and pressure.

Question 3

What are the properties of Halogens?

Answer 3

Family: 17
Have a noticeable colourAre a gas at room temperature or form one with very little heatingMost reactive non-metals
As you move from top to bottom, colour intensity and melting point increase, and reactivity decreases

Question 3

What are the properties of Nobel Gasses?

Answer 3

Family: 18
Colourless gases but will glow with bright colours if a current is passed through them
Unreactive
Density increases as you move down the column