Explain law of octaves with example

Explanation

**Step-by-Step Solution:**

1. **Definition of Law of Octaves**: The Law of Octaves is a principle in chemistry that states that when elements are arranged in order of increasing atomic mass, every eighth element exhibits similar properties. This concept was proposed by John Newlands in 1865.

2. **Arrangement of Elements**: To illustrate the Law of Octaves, we arrange the first few elements in order of their increasing atomic mass. For example, consider the following elements:
- Lithium (Li)
- Beryllium (Be)
- Boron (B)
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