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A part of the early classification of elements has been given below :H Li Be B C N OF Na Mg Al Si P S(a) Which law of classification of elements is illustrated by the above arrangement of elements ?(b) Name the scientist who proposed such a classification of elements.(c) Why is such a classification of elements compared with a characteristic of musical scale ?(d) State one limitation of this classification of elements. |
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Answer» (a) Newlands’ law of octaves . (b) Newlands . (c) This classification of elements is compared with a characteristic of musical scale because in this classification, the repetition in the properties of elements is just like the repetition of eighth note in an octave of music . (d) This classification of elements could be applied only up to the element calcium and not beyond that . |
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