Periodic table - alkali Metals (Group 1)

Question 1

Melting and boiling points go ____ as you go down the group.

Answer 1

Melting and boiling points go down as you go down the group.

Question 2

Metals react with _____ to produce hydrogen and an alkaline. e.g. metal ________ + hydrogen

Answer 2

Metals react with water to produce hydrogen and an alkaline. e.g. metal hydroxide + hydrogen

Question 3

Reactivity _______ as you go down the group.

Answer 3

Reactivity increases as you go down the group.

Question 4

are group 1 metals hard or soft?

Answer 4

soft - could be cut with a knife

Question 5

what gas do group 1 metals react rapidly with

Answer 5

oxygen - they will form metal oxides

Question 6

what group 7 element do group 1 metals also react rapidly with

Answer 6

chlorine - metal chloride

Question 7

why do group 1 metals get more reactive as we move down the group

Answer 7

1. as you move down the group, the radius of the atoms increase meaning there is a greater distance between the positive nucleus and the negative electron
2. as you move down, the electrons have more electrons in the internal energy levels meaning shielding increases as you move down the group