Medium
Explain the contribution of Newlands to the periodic table.
(N/A) John Alexander Newlands in $1865$ proposed the Law of Octaves.
- Law: "Every eighth element has properties similar to the first element."
- The relationship is analogous to the musical scale,where every eighth note resembles the first. For his work,he was later awarded the Davy Medal in $1887$ by the Royal Society,London.
- Law: "Every eighth element has properties similar to the first element."
- The relationship is analogous to the musical scale,where every eighth note resembles the first. For his work,he was later awarded the Davy Medal in $1887$ by the Royal Society,London.
| Element | $Li, Be, B, C, N, O, F$ |
| At. wt. | $7, 9, 11, 12, 14, 16, 19$ |
| Element | $Na, Mg, Al, Si, P, S, Cl$ |
| At. wt. | $23, 24, 27, 29, 31, 32, 35.5$ |
| Element | $K, Ca$ |
| At. wt. | $39, 40$ |
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| $(1)$ Lothar Meyer | $(A)$ First to present a periodic table showing correct arrangement up to Calcium. |
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| $(E)$ Presented the first possible periodic table. | |
| $(F)$ Arranged elements into groups of three. | |
| $(G)$ Law of Octaves. |
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