Question 23
Question 23 of 40
Question image for Q23
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 that: (a) Group VIII noble gases have a full outer electron shell (b) the number of outer shell electrons is equal to the group number in Groups I to VII (c) the number of occupied electron shells is equal to the period number

2. Atoms, elements and co...
2.5. Simple molecules and covalent...

State that a covalent bond is formed when a pair of electrons is shared between two atoms leading to noble gas electronic configurations

3. Stoichiometry
3.2. Relative masses of atoms and m...

Describe relative atomic mass, ( A_r ), as the average mass of the isotopes of an element compared to 1/12th of the mass of an atom of ( ^{12}C )