Question

Explain why some symbols e.g Cl and Si have two letters.....

Answer 1

Answer:

Explanation:

Most chemical elements are represented symbolically by two letters, generally the first two in their name. In some cases, the first letter together with some other letter from their name was used, particularly when their first two letters had already been allocated to another element.

Answer 2

Answer:

the first two letter shows the short form of elements, it is also called symbol