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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 names from the description.
Two elements having valency 4.
Write a short note on the following type of element –
transition elements
d-block elements are otherwise known as ______.
______ block element is placed at the bottom of the periodic table.
What are the s-block elements?
What are the p-block elements
d-block elements are called transition elements.
Assertion (A): Noble gases are chemically inert in nature.
Reason (R): Noble gases have stable electronic structures.
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]
Answer the following questions related to the modern periodic table.
Which block elements are known as transition elements?
