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.

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Similar questions

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
[2 MARKS]
(a) Pick two sets of elements which have similar properties.
(b) The given sequence represents which law of classification of elements?

The given sequence of elements arranged based on increasing atomic masses represents which law of classification of elements?

F, N a, M g, A l, S i, P, S, C l

K

Which of the following elements have similar properties?

F, N a, M g, A l, S i, P, S, C l, A r

K

Question 17
Arrange the following elements in the order of their decreasing metallic character
Na, Si, Cl, Mg, Al

(a) Cl > Si >Al > Mg >Na
(b) Na >Mg >Al >Si > Cl
(c) Na > Al > Mg > Cl > Si
(d) Al > Na> Si > Ca> Mg

Q. The elements in the Mendeleev’s periodic table were arranged in the increasing order of their atomic masses. But, the sequence was inverted so that two elements with similar properties could be grouped together. Identify those two elements.

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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?