Question 6
Question 6 of 40
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Periodic Table
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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
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 \( ^{12}C \)

1. States of matter
1.2. Diffusion

Describe and explain the effect of relative molecular mass on the rate of diffusion of gases

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

State that isotopes of the same element have the same chemical properties because they have the same number of electrons and therefore the same electronic configuration