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प्रश्न
What is meant by a Group in the Periodic Table?
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उत्तर
The verticle columns from top to bottom are called groups.
संबंधित प्रश्न
Elements in the same group show the same valency. Give scientific reason.
Study the following table in which positions of six elements A, B, C, D, E and F are shown as they are in the modern periodic table:
|
Group→
Period↓ |
1
|
2
|
3-12
|
13
|
14
|
15
|
16
|
17
|
18
|
| 2 | A | B | C | ||||||
| 3 | D | E | F |
On the basis of the above table, answer the following questions:-
(i) Name the element which forms only covalent compounds.
(ii) Name the element which is a metal with valency three.
(iii) Name the element which is a non-metal with valency three.
(iv) Out of D and E, which is bigger in size and why?
(v) Write the common name for the family to which the elements C and F belong.
Define the term : Valency
How do the valency and the atomic size of the elements vary while going from left to right along a period in the modern periodic table?
Name two elements you would expect to show chemical reactions similar to calcium. What is the basis of your choice?
An element X belong to 3rd periods and group II of the periodic table state:
name of the element,
Name the element of lower nuclear charge out of Be and Mg.
How many elements are there in period 2?
Arrange the following as per the instruction given in the bracket
He,Ar,Ne (Increasing order of the number of electron shells)
Electron Affinity is maximum in ______.
