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प्रश्न
Name and state the following with reference to the elements of the first three periods of the periodic table.
Metalloid in Period 3.
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उत्तर
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संबंधित प्रश्न
Differentiate between Normal elements and Transition elements.
In the following set of element, one element does not belong to the set. Select this element and state why it does not belong:
Calcium, Magnesium, Sodium, Beryllium
How does the valency of elements change of moving from left to right in the third period of the periodic table?
The elements A, B, C, D and E have atomic numbers 9, 11, 17, 12 and 13 respectively. The pair of elements which belongs to the same group of the periodic table is:
(a) A and B
(b) B and D
(c) A and C
(d) D and E
Which element has:
twice as many electrons in its second shell as in its first shell?
What is the common feature of the electronic configuration of the elements at the end of period 2, and period 3?
How can the valency of an element be determined if its electronic configuration is known?
The following questions refer to the Periodic Table.
Name the first and last element in period 2.
State the following:
The group to which the element with an electronic configuration of 2, 8, 2 belongs.
