10.2.1 Group 1 Elements True/False

Group I consists of the five metals: lithium, sodium, potassium, rubidium, and caesium, along with the radioactive element francium.

Lithium, sodium, and potassium are stored under oil to prevent contact with water or air.

Lithium is the softest among the three: lithium, sodium, and potassium.

Lithium, sodium, and potassium have low melting points compare to the other metals.

When freshly cut with a knife, lithium, sodium, and potassium have shiny surfaces.

Group I metals react with oxygen to form white solid oxides.

Group I oxides react with water to form alkaline solutions of the metal hydroxide.

Group I metals react with water to produce an alkaline solution of the metal hydroxide and hydrogen gas.

The further down Group I you go, the less reactive the metals become.

When Group I elements react, they lose their outer electron and become more stable by obtaining the electronic configuration of a noble gas.