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प्रश्न
Match column A with column B.
|
Column A |
Column B |
|
(a) Element short by 1 electron in octet |
(i) Transition elements |
|
(b) Highly reactive metals |
(ii) Noble gases |
|
(c) Non-reactive elements |
(iii) Alkali metals |
|
(d) Elements of groups 3 to 12 |
(iv) Alkaline earth metals |
|
(e) Radioactive elements |
(v) Halogens |
|
(f) Elements with 2 electrons in the outermost orbit |
(vi)Actinides |
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उत्तर
|
Column A |
Answers |
|
(a) Element short by 1 electron in octet |
(v) Halogens |
|
(b) Highly reactive metals |
(iii) Alkali metals |
|
(c) Non-reactive elements |
(ii) Noble gases |
|
(d) Elements of Groups 3 to 12 |
(i) Transition elements |
|
(e) Radioactive elements |
(vi) Actinides |
|
(f) Elements with 2 electrons in the outermost orbit |
(iv) Alkali earth metals |
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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 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.
Statement: Elements in a group generally possess similar properties but elements along a period have different properties.
Reason: The difference in electronic configuration makes the element differ in their chemical properties along a period.
d-block elements are called transition elements.
Assertion (A): Noble gases are chemically inert in nature.
Reason (R): Noble gases have stable electronic structures.
Answer the following questions related to the modern periodic table.
Name the blocks with the groups that they consist of.
Answer the following questions related to the modern periodic table.
Which block elements are known as transition elements?
