Question 4
Question 4 of 40
Question image for Q4
Periodic Table
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No letter options?
Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.
A 1, 2 and 3 are correct
B 1 and 2 only are correct
C 2 and 3 only are correct
D 1 only is correct
Topics Tested
2. Atoms, elements and co...
2.2. Atomic structure and the Perio...

State the relative charges and relative masses of a proton, a neutron and an electron

2. Atoms, elements and co...
2.3. Isotopes

Define isotopes as different atoms of the same element that have the same number of protons but different numbers of neutrons