$\text{H}\ \ \ \ \ \ \ \text{Li} \ \ \ \ \ \ \ \text{Be} \ \ \ \ \ \ \ \ \ \text{B}\ \ \ \ \ \ \ \text{C}\ \ \ \ \ \ \ \text{N}\ \ \ \ \ \ \ \text{O}\\\text{F}\ \ \ \ \ \ \ \text{Na}\ \ \ \ \ \ \text{Mg}\ \ \ \ \ \ \ \text{Al}\ \ \ \ \ \ \text{Si}\ \ \ \ \ \ \ \text{P}\ \ \ \ \ \ \ \ \text{S}$
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Which law of classification of element is illustrated by the above arrangement of elements?
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Name the scientist who proposed such a classification of elements.
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Why is such a classification of elements compared with a characteristics of musical scale?
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State one limitation of this classification of elements.

