Multiple Choice
The periodic table organizes elements in order of increasing which property?
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4. Atoms and Elements
Periodic Table: Element Symbols
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Which letter is not used in any official chemical element symbol on the periodic table?
A
J
B
U
C
K
D
W
Verified step by step guidance1
Understand that chemical element symbols are one- or two-letter abbreviations derived mostly from their English or Latin names, and each symbol is unique on the periodic table.
Recall that the periodic table uses letters from the English alphabet, but not all letters are used as symbols for elements.
Check the periodic table or a list of element symbols to identify which letters appear as the first letter in any element symbol.
Note that the letter 'J' does not appear in any official chemical element symbol, while letters like 'U', 'K', and 'W' do appear (e.g., Uranium 'U', Potassium 'K', Tungsten 'W').
Conclude that the letter not used in any official chemical element symbol is 'J'.
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