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प्रश्न
Write a short note on the following type of element –
normal elements
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उत्तर
Normal elements OR Representative elements:
“Elements of groups 1, 2, 13, 14, 15, 16, 17 which have all inner shells completely filled with electrons. Only outermost shells are incomplete are called normal 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 family of metals having valency two.
Write a short note on the following type of element –
inner transition elements
State whether true or false. If false, correct the statement.
Group 17 elements are named as Halogens.
If the electronic configuration of an element is 1s2 2s2 2p6 3s2 3p1’then it will
occupy ______ block of the periodic table.
f-block elements are also known as ______.
What are the s-block elements?
What are the p-block 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]
Match the columns:
| Column ‘A’ | Column ‘B’ |
| Manganese | (a) Metal |
| (b) Non-metal | |
| (c) Transition metal |
