Multiple Choice
Which of the following is the atomic number of copper (Cu) on the periodic table?
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2. Atoms & Elements
Periodic Table: Element Symbols
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Which of the following is the chemical symbol for potassium?
A
Pt
B
P
C
Po
D
K
Verified step by step guidance1
Understand that chemical symbols are one- or two-letter abbreviations derived from the element's English or Latin name.
Recall that potassium's chemical symbol is derived from its Latin name 'kalium', which is why it is represented by the letter 'K'.
Recognize that 'Pt' stands for platinum, 'P' stands for phosphorus, and 'Po' stands for polonium, so none of these represent potassium.
Therefore, the correct chemical symbol for potassium is 'K'.
This is a common exception where the symbol does not match the English name but is based on the Latin name.
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