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Relative Atomic Mass (GCSE Chemistry)

The following is a GCSE Chemistry test covering 'Relative Atomic Mass' from the broader topic Atomic Structure And The Periodic Table. 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

Which is the best definition of an isotope?
Which procedure would you use to calculate the mass of 3.00 × 10^24 atoms of element with Ar 39.1?
A chemist has 6.02 × 10^23 atoms of an element whose Ar = 63.5. What is the mass of this mole in grams?
Which effect do isotopes have on chemical reactions under ordinary conditions?
A sample contains one mole of carbon atoms. How many atoms of C-12 (12C) are in one mole of C-12?
Which rounding instruction is most appropriate when reporting Ar to 3 significant figures after calculation?
Which of the following correctly links Ar, mol and Avogadro’s number?
An element has isotopes with masses 28, 29, 30 and abundances 92.2%, 4.7%, 3.1%. Which is Ar (to 2 d.p.)?
Which statement best describes relative atomic mass (Ar)?
A student is given Ar for two elements: A = 11.0 and B = 23.0. Which statement is true about the masses of one mole of each element?
A student is given the abundance x of isotope mass 100 and (100-x)% of mass 102. If Ar measured = 101.2, what is x?