Elements - Revision

The positive particle of an atom are called ________.

• electron

• proton

• neutron

• shell

What is the chemical symbol for the element Calcium?

• Ca

• Co

• C

• CA

Metals can be used as wire because they are ________.

• shiny

• malleable

• ductile

• metallic

A horizontal row of elements in the periodic table.

• molecule

• period

• group

• family

Where are the "HALOGENS" located in the periodic table?

• group 1

• group 17 or 7

• group 18

• group 5

Ozone is considered _________ because it has 3 atoms of oxygen in its molecule.

• monoatomic

• diatomic

• triatomic

• tetratomic

Phosphorus is considered _________ because it has 4 atoms of phosphorus in its molecule.

• monoatomic

• diatomic

• triatomic

• tetratomic

Group 1 elements, Alkali metals have ______________ valence electrons.

• 1

• 2

• 3

• 7

Group 2 elements, Alkaline earth metals have ______________ valence electrons.

• 1

• 2

• 3

• 7

Group 7 elements, Halogens have ______________ valence electrons.

• 1

• 2

• 3

• 7