C4.1

What are Group 1 metals known as?

Group 1 metals are known as alkali metals

What do alkali metals form when they react with water

Alkali metals form an alkaline solutions when they react with water

Give some examples of Group 1 metals

Lithium, sodium, potassium, rubidium caesium and francium

Where are group 1 metals found in the periodic table?

They are found in the first column of the periodic table

What similar characteristic do all alkali metals share?

Alkali metals each have one electron in their outermost shell

What are some similar characteristic chemical properties alkali metals have?

• They are all soft metals which can easily be cut with a knife

• They have relatively low densities and low melting points

• They are very reactive (they only need to lose one electron to become highly stable)

What is the trend in group 1 metals

the alkali metals are soft and easy to cut, they get softer as you move down the group

What is an exception to the trend?

Potassium is the exception; it has a lower density then sodium

How dense are the first 3 alkali metal’s

The first 3 alkali metals are less than densely

What is their relative melting poin?

They all have relatively low melting points which decrease as you oennhr