Group 1

Question 1

What are group 1 metals known as

Answer 1

Alkali metals

Question 2

What do they have that makes them very reactive

Answer 2

One electron in the outer shell

Question 3

What is the trend going down the group and why

Answer 3

Increasing reactivity- the outer electron is further away from the attraction of the nucleus
Lower melting and boiling points
Higher relative atomic mass

Question 4

What do alkali metals form

Answer 4

1+ ions

Question 5

What do they react to form

Answer 5

Ionic compounds

Question 6

What is the reaction with water

Answer 6

Hydrogen gas and sodium hydroxide
They react vigorously
The more lower down the group, the more violent
Lithium sodium and potassium float and moved around, fixing

Question 7

What is the reaction with chlorine

Answer 7

Produces a salt
React vigorously when heated in chlorine gas to form white salts called metal chlorides
As you go down, reactivity increase so reaction gets more vigorous

Question 8

What is the reaction with oxygen

Answer 8

Form a metal oxide
Lithium oxide
Sodium oxide, sodium peroxide
Potassium peroxide, potassium superoxide

Question 9

What is the symbol for hydroxide

Answer 9

OH