Multiple Choice
Which of the following statements about salt and the periodic table is correct?
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2. Atoms & Elements
Periodic Table: Element Symbols
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Which of the following is a two-letter chemical symbol for an element on the periodic table?
A
Na
B
H
C
C
D
O
Verified step by step guidance1
Understand that chemical symbols for elements on the periodic table can be one or two letters long. The first letter is always capitalized, and if there is a second letter, it is lowercase.
Look at each option and identify whether it is one or two letters: H (one letter), C (one letter), O (one letter), Na (two letters).
Recall that 'Na' is the chemical symbol for Sodium, which is an element on the periodic table.
Recognize that H, C, and O are also chemical symbols but each consists of only one letter (Hydrogen, Carbon, and Oxygen respectively).
Conclude that among the given options, 'Na' is the only two-letter chemical symbol for an element.
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