The Alkali metals

Question 1

How do lithium, sodium, and potassium react with water? What is produced?

Answer 1

1) Vigorously
2) Metal hydroxide solution (alkaline)
3) Hydrogen bubbles (fizzing)

Question 2

What are group 1 metals called?

Answer 2

Alkali metals

Question 3

Sodium + water=

Answer 3

Sodium hydroxide + hydrogen

Question 4

How do group 1 metals react with oxygen?

Answer 4

They form metal oxides

Question 5

Lithium reacts with oxygen to form

Answer 5

Lithium oxide (Li2O)

Question 6

Sodium reacts with oxygen to form

Answer 6

A mixture of sodium oxide (Na2O) and sodium peroxide (Na2O2)

Question 7

Potassium reacts with oxygen to form

Answer 7

A mixture of potassium peroxide (K2O2) and potassium superoxide (KO2)

Question 8

What happens as you go down group 1

Answer 8

The elements get more reactive

Question 9

Least reactive group 1 metal

Answer 9

Lithium

Question 10

Most reactive group 1 metal

Answer 10

Potassium

Question 11

Atoms lose electrons more easily as you move down the group

Answer 11

1) All group 1 metals have 1 outer electron
2) As you go down, the outermost electron is farther from the nucleus
3) Therefore electrostatic forces of attraction are less
4) Therefore, as you go down group 1 the atoms get bigger and the outermost electron is easily lost
5) This makes them more reactive