Multiple Choice
Which of the following is the correct chemical symbol for manganese?
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2. Atoms & Elements
Periodic Table: Element Symbols
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Which of the following is the chemical symbol for an element?
A
NH3
B
CO2
C
Na
D
H2O
Verified step by step guidance1
Understand that a chemical symbol represents a single element, usually one or two letters, with the first letter capitalized and the second letter lowercase if present.
Recognize that NH3 (ammonia), CO2 (carbon dioxide), and H2O (water) are chemical formulas representing compounds made of multiple elements bonded together, not single elements.
Identify that 'Na' is the chemical symbol for the element sodium, which is a single element and not a compound.
Recall that chemical symbols are derived from the element's English or Latin name, and 'Na' comes from the Latin name 'Natrium'.
Conclude that among the given options, only 'Na' is a valid chemical symbol for an element.
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