What is the relationship between the atomic mass of an isotope and the Average Atomic Mass found on the Periodic Table? A.) The Average Atomic Mass of an element on the periodic table is always the same as the atomic mass of the most abundant isotope.
B.) The Average Atomic Mass of an element on the periodic table is the sum of the masses of all stable isotopes.
C.) The Average Atomic Mass of an element on the periodic table will be closest to the atomic mass of the most abundant isotope.

you need to take a look at the periodic system in order to sort these elements into pairs that would most likely exhibit similar chemical properties. first, you need to find elements that are found in the same group (groups are vertical in the periodic system), and then to see whether they have the same valence number. if they meet these criteria, they will have similar properties.

the first pair: ne (neon) and kr (krypton), are noble gases found in group 8

the second pair: li (lithium) and k (potassium), found in group 1

the third pair: s (sulfur) and te (tellurium), found in group 6

answer: mole of the gas

answer: mole of the gasexplanation:

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