Edexcel GCSE CP6 Radioactivity

What is the name of the subatomic particle A?

• Proton

• Neutron

• Electron

• Nucleus

What is the name of the subatomic particle B?

• Proton

• Neutron

• Electron

• Nucleus

What is the name of the subatomic particle C?

• Proton

• Neutron

• Electron

• Nucleus

In Rutherford's gold foil experiment most of the alpha particles traveled straight through the foil, what did this mean about atoms?

• Atoms are solid spheres

• Atoms are mostly empty space

• Atoms have a positive nucleus

• Nearly all the mass of an atom is located in the nucleus

In Rutherford's gold foil experiment some of the alpha particles were slightly deflected, what did this mean about atoms?

• Atoms are solid spheres

• Atoms are mostly empty space

• Atoms have a positive nucleus

• Nearly all the mass of an atom is located in the nucleus

What is an isotope?

• The same element with a different number of neutrons

• A different element with the same number of protons

• The same element with a different number of electrons

• A different element with a different number of neutrons

What does the top number tell you?

• The atomic number, the number of protons and neutrons

• The mass number, the number of protons and neutrons

• The atomic number, the number of protons and electrons

• The mass number, the number of protons and electrons

What is ionising radiation?

• Radiation that causes protons to escape

• Radiation that causes and electron to move up a shell

• Radiation that causes and electron to escape

• Radiation that causes a neutron to escape

What is the piece of equipment used to measure radiation called?

• Geiger-Muller tube

• Radiation counter

• Clicker

• Counter

What is the unit for the activity of a radioactive substance

• Clicks

• Becquerels (Bq)

• Counts

• Joules (J)