Banked

What is the charge of a single electron?

• +0.1602 ×× 10-18 coulombs
• -0.1602 ×× 10-18 coulombs
• -0.1620 ×× 10+18 coulombs

What is a charged atom known as?

• An ion.
• An electron.
• A neutron.

What charge is carried by an atom that has fewer electrons than protons?

• It carries a neutral charge.
• It carries a negative charge.
• It carries a positive charge.

Which of the following are the parts of an atom?

• Ions and neutrons
• Molecules
• Protons, neutrons and electrons

What charge is carried by an atom that has more electrons than protons?

• A neutral charge.
• A negative charge.
• A positive charge.

Identify the parts of an atom as indicated on the following figure.

• A = Neutron, B = Proton, C = Electron
• A = Ion, B = Proton, C = Neutron
• A = Electron, B = Proton, C = Neutron

Which of the following elements is NOT a metallic conductor?

• Copper
• Aluminium
• Germanium

Which statement about a metallic conductor is correct?

• In a metallic bond the atoms are loosely packed and have a crystal lattice.
• In a metallic bond the atoms are closely packed and have no crystal lattice.
• In a metallic bond the atoms are closely packed and have a crystal lattice.

When is an atom electrically neutral?

• When there are more protons than electrons.
• When there is an equal number of protons and electrons.
• When there are more electrons than protons.

What charge is carried by an atom if there is a surplus of electrons?

• Positive
• Negative
• Neutral