Which symbol represents Potassium?

Which symbol represents Potassium?

• A. K
• B. Ca
• C. P
• D. Ar

Answer: (A)

Chemical symbols are the shorthand used to name elements. Potassium uses the symbol K because its Latin name is Kalium, so the single-letter symbol K is the standard abbreviation in chemistry and science notation. This is why potassium isn’t shown as Ca, P, or Ar, which are the symbols for Calcium, Phosphorus, and Argon, respectively. Knowing that potassium comes from Kalium helps explain why the symbol is K.

Chemical symbols are the shorthand used to name elements. Potassium uses the symbol K because its Latin name is Kalium, so the single-letter symbol K is the standard abbreviation in chemistry and science notation. This is why potassium isn’t shown as Ca, P, or Ar, which are the symbols for Calcium, Phosphorus, and Argon, respectively. Knowing that potassium comes from Kalium helps explain why the symbol is K.