Question 3
Question 3 of 40
Question image for Q3
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
1. Atomic structure
1.3. Electrons, energy levels and a...

In 1.3 each atom or ion described will be in the ground state. Only the elements hydrogen to krypton will be assessed.