Trends within the periodic table

Question 1

What is the density like of the metals in group 1?

Answer 1

Very low (the first few elements are less dense than water)

Question 2

What happens when the group 1 metals react with water?

Answer 2

They release hydrogen

Question 3

What happens as you go down group 1?

Answer 3

• The more reactive the element

- The lower the boiling/melting point

Question 4

What happens as you move down group 7 (the halogens)?

Answer 4

• The less reactive the element

- The higher its melting and boiling point

Question 5

Why are the trends in the periodic table present?

Answer 5

Because of the higher the energy of the outer shell of electrons.
-The more easily electrons are lost
The less easily electrons are gained
Because of the distance from the outer electron shell and the nucleus.