Module 3

A neutron has.

• the opposite charge to an Electron but half the weight of a proton.

• the same charge as an Electron but half the mass.

• no electrical charge but will add weight to the nucleus.

The unit which consists of two or more different types of atoms is known as a

• Particle of an element.

• Molecule of a compound.

• Molecule of an element.

The unit which consists of two or more different types of atoms is known as a.

• An Element

• An molecule

• An Atom.

What change does the nucleus of an atom possess?

• Positive

• Neutral

• Negative

If electrons are added to an atom it becomes.

• A neutral Ion

• A positive Ion

• A negative Ion

The charge on a proton is

• Positive

• Negative

• Neutral

What is a molecule?

• The smallest part of an atom.

• The smallest part of a compound.

• The smallest part of an electron.

An atom is.

• The smallest part of an element that retains its characteristic.

• The smallest part of a compound that exist independently.

• The smallest particle of matter.

A neutron is particle, which is.

• Is contained in the nucleus of all atoms.

• Orbits the nucleus of the atom.

• Is contained within the nucleus of the most atoms.

The mass of an atom is contained mainly in the.

• Proton.

• Nucleus.

• Electron.