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17-11-2020
Chemistry

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Based on your knowledge of the periodic table, identify the element Y.

Based on your knowledge of the periodic table identify the element Y class=

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17-11-2020

Answer: argon

Explanation:

using the last clue “avg atomic mass of 3.33x greater than carbon-12” we can deduce the atomic mass of the element is 12x3.33=40(2sf) hence its argon. we can further confirm from third clue that it is a noble gas hence unreactive

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