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प्रश्न
Write a short note on the following type of element –
inner transition elements
उत्तर
f-block elements i.e. Lanthanides and actinides are called inner transition elements.
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संबंधित प्रश्न
Write the name from the description.
The period with electrons in the shells K, L, and M.
Write the name from the description.
The group with valency zero.
Write the name from the description.
The family of metals having valency one.
Write the name from the description.
The family of metals having valency two.
Write a short note on the following type of element –
transition elements
State whether true or false. If false, correct the statement.
Group 17 elements are named as Halogens.
______ block element is placed at the bottom of the periodic table.
What are the s-block 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]
