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This question is about atomic structure and isotopes.

An atomic diagram of element Y.

Name the parts of the atom labeled A and B. Choose answers from: electron, neutron, nucleus, proton.

[2]

Which subatomic particle has the lowest relative mass? Choose from: electron, neutron, proton.

[1]

Which group of the periodic table contains element Y?

[1]

Using the diagram, determine the atomic number and the mass number of element Y.

[2]

Two of the isotopes of boron are represented as $510B^{10}_{5}\text{B}$ and $511B^{11}_{5}\text{B}$ . The relative atomic mass ( $A_r$ ) of boron is $10.8$ . Which statement is true about the abundance of each isotope in a sample of boron?

Statement 1: There are fewer $510B^{10}_{5}\text{B}$ atoms than $511B^{11}_{5}\text{B}$ atoms.
Statement 2: There are more $510B^{10}_{5}\text{B}$ atoms than $511B^{11}_{5}\text{B}$ atoms.
Statement 3: There are equal numbers of $510B^{10}_{5}\text{B}$ and $511B^{11}_{5}\text{B}$ atoms.

[1]

A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes Questions

Practise AQA GCSE Chemistry A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes with exam-style questions for Foundation and Higher tier. 64 questions covering Atoms, elements and compounds, Mixtures, The development of the model of the atom (common content with physics), Relative electrical charges of subatomic particles, Size and mass of atoms, Relative atomic mass, and Electronic structure, matched to the AQA GCSE Chemistry (8462) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.