Multiple choice general knowledge science & technology

Name the element with symbol 'Ca'

  1. Calcium

  2. Californium

  3. Cadmium

  4. Carolium
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A Correct answer
Explanation

The chemical symbol 'Ca' stands for Calcium, atomic number 20 - an alkaline earth metal essential for biological functions. Californium is 'Cf', Cadmium is 'Cd', and 'Carolium' is not a real element. Calcium is abundant in limestone, bones, and dairy products.

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