Question

give examples of newlands law of octaves

Answer 1

An English scientist called John Newlandsput forward his law of octaves in 1864. He arranged all the elements known at the time into a table in order of relative atomic mass. When he did this, he found that each element was similar to the element eight places further on.
However, each sequence of Newlands' octaves contain only seven elements. Count the columns! In Newlands' day the group 8 (18) rare gas elements, He, Ne, Ar, Kr & Xe, had not yet been discovered. To Newlands, Li to Na is an octave of eight elements.

Answer 2

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✔️ In 1866, he arranged then known elements in order of increasing atomic masses.

✔️ He started with element having low atomic mass,hydrogen and ended up in the thorium which was the 56th element.

✔️ He found that every eight element had properties similar that of the first.

✔️ He compared this to the octaves found in music.

✔️ Therefore, he called it the “Law of Octaves”. It is known as “Newland’s Law of Octaves”.

Examples:-

⏩ Properties of Sodium and Lithium are found to be same.

⏩ Beryllium and magnesium resembles each other.

Hope it helps you!!