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प्रश्न
Arrange the following elements in the increasing order of their metallic character:
Mg, Ca, K, Ga
उत्तर
The elements in the increasing order of their metallic character are as follows:
Ga < Mg < Ca < K
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संबंधित प्रश्न
The elements 4Be, 12Mg and 20Ca, each having two valence electrons in their valence shells, are in periods 2, 3 and 4 respectively of the modern periodic table. Answer the following questions associated with these elements, giving reason in each case:
(a) In which group should they be?
(b) Which one of them is least reactive?
(c) Which one of them has the largest atomic size?
List any two properties of the elements belonging to the first group of the modern periodic table.
Write the number of vertical columns in the modern periodic table. What are these columns called?
The element which has the maximum number of valence electrons is:
(a) Na
(b) P
(c) Si
(d) A
Name the element which has the electronic configuration 2, 8, 3?
Name the non-metals present in period 2 and metals in period 3.
Copy and complete the following sentence choosing the correct word or words from those given below, at the end of the sentence:
The similarities in the properties of elements belonging to a group are because they have the same ______
Arrange the following in order of increasing radii:
N, O, P
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.
Match the option A and B with the statements (i) and (ii):
| A. metal | (i) The metal that forms two types of ion. |
| B. iron | (ii) An element with electronic configuration 2, 8, 8, 3. |
