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प्रश्न
An element A has 2 electrons in its fourth shell. State:
its valency
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उत्तर
Its valency is 2.
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संबंधित प्रश्न
List any two properties of the elements belonging to the first group of the modern periodic table.
How does the valency of elements vary in going down a group of the periodic table?
Rewrite the following statement after correction, if necessary:
The metallic character of elements in a period increases gradually on moving from left to right.
How does the electropositive character of elements change on going down in a group of the periodic table?
How does Chemical reactivity of elements change on going from left to right in a period of the periodic table?
Give example in support of your answer.
What happens to the metallic character of the elements as we move from left to right in a period of the periodic table?
The element which has the maximum number of valence electrons is:
(a) Na
(b) P
(c) Si
(d) A
An element X belong to 3rd periods and group II of the periodic table state:
name of the element,
The elements of one short period of the periodic table are given below in order from left to right:
| Li | Be | B | C | O | F | Ne |
To which period do these elements belong?
Name or state following with reference to the element of the first three periods of the periodic table.
The non-metallic element present in period 3 other than sulphur and chlorine.
