Q13 · 2020 · Paper 1Simple familiar1 mark
QUESTION 13
The Rutherford atomic model describes an atom
(A)
as the smallest particle of any substance.
(B)
with a small, dense nucleus surrounded by orbiting electrons.
(C)
consisting of electrons scattered throughout a sphere of positively charged fluid.
(D)
consisting of a small positive nucleus surrounded by negative electrons in set orbits of fixed energy.
WORKED SOLUTION
1 markAnswer B
ANSWER
B
Worked solution
Rutherford’s model has a small, dense, positively charged nucleus with electrons outside it; fixed quantised orbits belong to the Bohr model. Option B.
Selects option B.
Worked explanation by QCE Vault; correct option verified against the QCAA answer key.