Quiz on Aluminium and Atomic Structure

What is the atomic number of aluminium?

• 14

• 12

• 13

• 15

How many protons are in an aluminium atom?

• 15

• 14

• 13

• 12

How many neutrons are in an aluminium atom?

• 15

• 14

• 13

• 12

What is the mass number of aluminium?

• 28

• 25

• 26

• 27

What particles are found in the nucleus of an aluminium atom?

• Neutrons and electrons

• Protons and electrons

• Protons and neutrons

• Only protons

What charge do protons have?

• Positive

• Negative

• Neutral

• No charge

What is the charge of electrons?

• Positive

• Negative

• Neutral

• No charge

How many electrons are in an aluminium atom?

• 14

• 15

• 13

• 12

What does the mass number represent?

• Total number of electrons

• Total number of protons and neutrons

• Total number of neutrons

• Total number of protons

Why can the mass of electrons be ignored when calculating mass number?

• They are not present in the nucleus

• They are very small compared to protons and neutrons

• They have no mass

• They are not charged