Radioactive Decay (OCR GCSE Physics A (Gateway Science Suite)): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What type of process is radioactive decay?
What type of process is radioactive decay?
A random process
What is the unit for measuring activity?
What is the unit for measuring activity?
Becquerel (Bq)
What is count-rate?
What is count-rate?
Decays recorded per second
What is an alpha particle made of?
What is an alpha particle made of?
2 protons and 2 neutrons
Which type of radiation is highly ionising?
Which type of radiation is highly ionising?
Alpha
Approximately how far can alpha particles travel in air?
Approximately how far can alpha particles travel in air?
5 cm
What can stop beta particles?
What can stop beta particles?
Sheet of paper
In alpha decay, by how much does the mass number decrease?
In alpha decay, by how much does the mass number decrease?
4
In beta decay, what happens to the atomic number?
In beta decay, what happens to the atomic number?
Increases by 1
What effect do gamma rays have on the nucleus?
What effect do gamma rays have on the nucleus?
Don't change charge or mass
What can stop gamma rays?
What can stop gamma rays?
Few cm of lead
What happens when alpha or beta emission occurs?
What happens when alpha or beta emission occurs?
A new element is formed