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Question
Elements have been arranged in the following sequence on the basis of their increasing atomic masses.
F, Na, Mg, Al, Si, P, S, Cl, Ar, K.
(a) Pick two sets of elements which have similar properties.
(b) The given sequence represents which law of classification of elements?
Elements have been arranged in the following sequence on the basis of their increasing atomic masses.
F, Na, Mg, Al, Si, P, S, Cl, Ar, K.
(a) Pick two sets of elements which have similar properties.
(b) The given sequence represents which law of classification of elements?
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Solution
(a) The two sets of elements which have similar properties are F and Cl, Na and K
(b) The given sequence represents 'Newlands law of Octaves'.
In 1864, Newlands made an attempt to classify elements. Similarly, Newlands stated that an eighth element starting any given one will have similar properties of first like the eight notes of an octave of music. So he called this relationship as the law of octaves.
(b) The given sequence represents 'Newlands law of Octaves'.
In 1864, Newlands made an attempt to classify elements. Similarly, Newlands stated that an eighth element starting any given one will have similar properties of first like the eight notes of an octave of music. So he called this relationship as the law of octaves.
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