P10.4 Starter Quiz - the atom and radioactivity

Where do you find electrons in an atom?

• No fixed position

• The nucleus

• On the outside

• Electron shells

Protons and neutrons are found in the _______ of the atom

Which of these is not a source of background radiation?

• Cosmic rays

• Radios

• Food and drink

• Radon gas

Put these radiations in order from most ionising to least ionising

• Beta

• Alpha

• Gamma

Positrons are the same mass as electrons but have a ________ ______.

We can use a __ ____ to detect radiation

Nuclear decay can be described by what two words?

• Random and spontaneous

• Irregular and influential

• Random and irregular

• Influential and predictable

Protons and ​ ​ (a)   both have a mass of ​ (b)   and are found in the ​ (c)  

• neutrons
• 1
• nucleus
• electrons
• 0
• shells

Which of these is the definition of an isotope?

• An atom with the same number of protons and neutrons

• An atom with different numbers of protons but the same number of neutrons

• An atom with different numbers of protons and neutrons

• An atom with the same number of protons and different numbers of neutrons

Atoms that are unstable will eventually _____.