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प्रश्न
The electronic configuration of an element is 2, 8, 4. State it:
group and period in the Modern Periodic Table.
उत्तर
The electronic configuration of the given element is 2,8,4. Since the number of valence electrons for the given element is 4. Hence, the element belongs to group 14 (10 + 4) and the 3rd period.
संबंधित प्रश्न
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?
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.
An element which is an essential constituent of all organic compounds belongs to following group of modern periodic table:
(a) group 4
(b) group 14
(c) group 15
(d) group 16
What do you understand by periodicity?
Why are noble gases placed in a separate group?
How does the number of:
valency vary on moving from left to right in the second period of the periodic table?
Arrange the following in increasing order of property indicated
SiO2, P2O5, SO3, Cl2O7 (acidic nature)
With reference to the variation of properties in the Periodic table, which of the following is generally true?
The position of elements A, B, C, D and E in the periodic table are shown below:
|
Group 1 |
Group 2 |
Group 17 |
Group 18 |
|
|
|
|
D |
|
|
B |
C |
|
|
A |
|
|
E |
Which type of ion will be formed by elements A, B, and C.
Name the elements in the correct order of their increasing atomic numbers present in the first, second, and third short periods of the periodic table.
State which of the elements are –
- metallic
- non-metallic
- noble gases
in each of the periods 2 and 3.
