Question

A part of the early classification of elements has been given below H
Li
Be
B
C
N
O
F
Na
Mg
Al
Si
P
S
(a) Which law of classification of element 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 characteristics of musical scale?
(d) State one limitation of this classification of elements.

Answer 1

Answer:

a. law of octaves is illustrated by above classification.

b.Newlands proposed such classification of elements.

c.As every 8th note has similar properties as 1st one, he found that every 8th element has same properties as the 1st one, there such classification is compared to characteristics musical notes.

d.limitation:

1. He placed more than one element in a slot.

Answer 2

Explanation:

(a) Newland’s law of octaves is illustrated by the above arrangement of elements.

(b) John Newlands proposed such a classification of elements.

(c) The reason for comparing the classificaiton of elements wit the musical scale’s characteristics is because of the repetition in the element properties, which is like the eighth note’s repitition in the music’s octave.

(d) The limitation in the element’s classification is that this could be applied only up to the element calcium and it does not go beyond that.