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Tutor HuntTest QuestionsChemistry QuestionsYear 10 Chemistry Questions

 

Size And Mass Of Atoms (GCSE Chemistry)

The following is a GCSE Chemistry test covering 'Size And Mass Of Atoms' 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

If 0.50 mol of carbon-12 atoms is present, how many atoms does this represent? (Avogadro constant = 6.02 × 10^23 mol-1)
Which of these shows the correct relationship between mass number (A), proton number (Z) and neutron number (N)?
Why is the mass of an electron usually ignored when calculating the relative atomic mass of an atom?
A sample contains 25% isotope A (mass 30) and 75% isotope B (mass 32). What is the approximate Ar of the element?
Which of these best explains why atomic radii generally increase going down a group in the periodic table?
Which particle contributes almost all of an atom’s mass?
How does the number of electrons in the outer shell change across Period 3 (from sodium to argon)?
Two elements X and Y are in the same period. X has a smaller atomic radius than Y. Which of the following explanations is most likely?
Which of the following experiments first led to the discovery of the electron?
Which statement about atomic structure is false?
Why is relative atomic mass on the periodic table often not a whole number?