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प्रश्न
Name or state following with reference to the element of the first three periods of the periodic table.
The periods which contain the inner transition elements.
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उत्तर
Inner transition elements in the 6th period and 7th period.
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संबंधित प्रश्न
Write the name from the description.
The group with valency zero.
Write the name from the description.
The family of metals having valency two.
Write the names from the description.
The metalloids in the second and third periods.
Write the names from the description.
Non-metals in the third period.
What is the main characteristic of the last elements in the periods of a periodic table? What is the general name of such elements?
d-block elements are otherwise known as ______.
What are the s-block elements?
Group 1 (except hydrogen) elements are called alkali metals.
d-block elements are called transition elements.
Write the answer to the questions with reference to the periodic table.
- What do (A), (B), (C), and (D) represent? [1]
- Elements are arranged in increasing order of their ______. [1]
- Write the electronic configuration of the first four elements in Group I. [1]
- What change in atomic radius is observed in moving from left to right in a Period? [1]
- Give a reason for (d). [1]
