Cambridge Lower Secondary Science Quiz

Three elements in Group 1 are , _______________ and _______________.

(a)  

The elements in Group 1 are very _______________. They can _______________ be cut with a knife.

• reactive

• easily

The elements in Group 1 are stored under _______________ because they are very _______________.

• oil

• reactive

When these elements react with water, they form the gas (a)   .

The elements are _______________ reactive with water as you go _______________ the group.

• less

• down

The two elements in Group 7 are _______________ and _______________.

• chlorine

• fluorine

The first two elements in Group 7 are (a)   at room temperature.

The three elements in Group 8 are _______________, _______________ and _______________.

• argon

• neon

• helium

All the elements in this group are (a)   at room temperature.

The elements in Group 8 are (a)   and do not form compounds with other elements.