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Which of the following is the atomic number of fluorine (symbol F) on the periodic table?
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2. Atoms & Elements
Periodic Table: Element Symbols
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Which of the following conventions is used for chemical element symbols on the periodic table today?
A
One or two letters, with the first letter capitalized and the second letter (if present) lowercase
B
Single lowercase letters only
C
Roman numerals representing atomic number
D
Three-letter abbreviations, all uppercase
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Understand that chemical element symbols are standardized abbreviations used to represent elements on the periodic table.
Recall that each element symbol consists of either one or two letters derived from its English or Latin name.
Note the convention that the first letter of the symbol is always capitalized to distinguish it clearly as an element symbol.
Recognize that if there is a second letter, it is always written in lowercase to avoid confusion with other symbols.
Conclude that the correct convention is: one or two letters, with the first letter capitalized and the second letter (if present) lowercase.
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