Question

4. Write the symbols of these elements.

vii. Calcium

Answer 1

Part 1: Definition of element:

Element is defined as a pure substance that cannot be broken down into simpler substances by any chemical or physical means.

Part 2: Symbol of element calcium:

• The symbol of an element is represented by the first letter of its name in uppercase. In some cases, the second or third letter in lowercase along with the first letter in uppercase is also written.
• In the case of calcium, the symbol is represented by the first letter in uppercase and the second letter in lower case.
• Hence, the symbol of calcium is $\mathrm{Ca}$.