Advertisements
Advertisements
प्रश्न
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.
उत्तर
(a) Newlands' law of octaves is illustrated by the above arrangement of elements.
(b) John Newlands is the scientist who proposed this classification of elements.
(c) This classification is compared with a characteristic of the musical scale because the repetition of the properties of elements is just like the repetition of the eighth note in an octave of music.
(d) Limitation: Newlands' law of octaves could only be applied up to the element calcium.
APPEARS IN
संबंधित प्रश्न
X and Y are the two elements having similar properties which obey Newland's laws of octaves. How many elements are there in-between X and Y?
The Newland's law of octaves for the classification of elements was not found to be applicable only up to the element:
(a) potassium
(b) calcium
(c) cobalt
(d) phosphorus
List two limitations of Newlands' Law of Octaves.
X and Y are two elements having similar properties which obey Newlands’s Law of Octaves. The minimum and maximum number of elements in between X and Y respectively are _______.
Find the odd one out and give its explanation.
Find the odd one out and give its explanation.
Element A and B follows Newland’s octaves rule. How many elements are there in between A and B?
The elements beryllium, magnesium and calcium are in group 2. What will be their valency?
According to Newland’s octave rule, chlorine shows similarity with fluorine. Because chlorine is _______.
Upto which element, the Law of Octaves was found to be applicable
