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Mass Number, Atomic Number And Isotopes (GCSE Physics)

The following is a GCSE Physics test covering 'Mass Number, Atomic Number And Isotopes' from the broader topic Atomic Structure. The test is geared towards the AQA exam board style syllabus.
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Below a typical questions that will be covered in this test. You final score will be logged on your account

What is the atomic number of an element?
What does the notation 35Cl represent for an isotope of chlorine?
How many neutrons are in ²5Mg (magnesium-25)?
If an element has relative atomic mass 35.5 and exists as isotopes ³5X (abundance 75%) and ³7X (abundance 25%), which isotope is heavier and how does this explain the RAM?
Which statement about radioisotopes and isotopes is correct?
What is the number of protons, neutrons and electrons in a neutral atom of ²7Al?
Which of the following changes produces an isotope of the same element?
An ion has 20 protons and 18 electrons. What is its charge and which element is it?
A neutral atom of an element has 15 protons and 16 neutrons. What is its mass number and atomic number?
Why do isotopes of the same element have similar chemical behaviour?
An isotope is best defined as: