Question 21
Question 21 of 40
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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...

Define proton number/atomic number as the number of protons in the nucleus of an atom

8. The Periodic Table
8.1. Arrangement of elements

Describe the relationship between group number and the charge of the ions formed from elements in that group