Isotopes (OCR GCSE Physics A, Combined (Gateway Science Suite)): Quizzes
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Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What do isotopes of the same element have in common?
What do isotopes of the same element have in common?
Same protons, different neutrons
What is always the same for all atoms of the same element?
What is always the same for all atoms of the same element?
Number of protons
In a neutral atom, what is true about electrons and protons?
In a neutral atom, what is true about electrons and protons?
They are equal in number
What does the mass number () represent?
What does the mass number () represent?
Number of neutrons and protons
In atomic notation, what does represent?
In atomic notation, what does represent?
Proton number
If an atom has 2 more electrons than protons, what is its charge?
If an atom has 2 more electrons than protons, what is its charge?
-2
Which are examples of isotopes of the same element?
Which are examples of isotopes of the same element?
Carbon-12, Carbon-13, Carbon-14
How many stable isotopes do most elements have?
How many stable isotopes do most elements have?
One or two
What is the nature of radioactive decay?
What is the nature of radioactive decay?
Totally random process
What is activity in radioactivity?
What is activity in radioactivity?
Rate at which nuclei decay
What is the unit of activity?
What is the unit of activity?
Becquerel (Bq)
How does count-rate relate to activity?
How does count-rate relate to activity?
Not the same as activity