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B
Au
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C
W
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D
T
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Solution
The correct option is CW Tn, Tu and Wf are not chemical symbols of any element but W is the symbol of tungsten. The word tungsten means “heavy stone” in Swedish.
The chemical symbol for tungsten is W, which stands for wolfram. Element Tungsten (W) belongs to group 6, atomic Number 74 and d−block.