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प्रश्न
The elements beryllium, magnesium and calcium are in group 2. What will be their valency?
उत्तर
The elements beryllium, magnesium and calcium are in group 2 and their valency is 2.
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संबंधित प्रश्न
State Newlands‘ Law of Octaves.
The law used by Newlands to arrange elements is known as........... .
What were the limitations of Newlands’ Law of Octaves?
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?
Fill in the following blank with suitable word:
According to Newland's classification of elements, the properties of sulphur are similar to those of oxygen because sulphur is the ............... element starting from oxygen.
What is Newlands' law of octaves? Explain with an example.
Did Dobereiner's triads also exist in the columns of Newlands' law of octaves? Explain your answer.
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
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.
Explain 'Newland's Law of Octaves.' Why was the law discarded?
List two limitations of Newlands' Law of Octaves.
What was the basis of the classification proposed by Newland?
State Newland’s Law of Octaves with a suitable example.
In which way was Newland’s Law of Octaves comparable to a musical note.
Select the correct answer from the options given below.
He arranged elements in increasing order of atomic numbers.
Newlands’ Law of Octaves is applicable upto _______.
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?
According to Newland’s octave rule, chlorine shows similarity with fluorine. Because chlorine is _______.
The similarity between the properties of the first and eighth elements is called the octave rule.
State Newland’s Law of Octaves.
Newlands relation is called ______
Up to which element, the Law of Octaves was found applicable?
Upto which element, the Law of Octaves was found to be applicable
