Group 1

Question 1

What are the physical properties of alkali metals?

Answer 1

Alkali metals are reactive,soft and have low densities.

They all have one electron in their outer shell.

Question 2

What are the trends of alkali metals?

Answer 2

alkali metals increase in reactivity as you go down the group .They have lower melting and boiling points as you go down the group and have a higher relative atomic mass.

Question 3

What do group 1 elements form ions with easily?

Answer 3

Group 7 elements as group 1 needs to lose an electron and group 7 needs to gain one.

Question 4

How do alkali metals react with water?

Answer 4

They react vigorously to produce hydrogen gas and metal hydroxides.
the chemical equation being: sodium +water —-> sodium hydroxide +hydrogen

Question 5

How do alkali metals react with chlorine?

Answer 5

React vigorously : sodium + chlorine —–> sodium chloride

Question 6

What are the physical differences between transition and group 1 metals?

Answer 6

group 1 metals are soft ,much less dense and much more reactive than transition metals.