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प्रश्न
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.
विकल्प
Statement is true and reason explains the statement.
Statement is false but the reason is correct.
उत्तर
Statement is tme and reason explains the statement.
APPEARS IN
संबंधित प्रश्न
Write the name from the description.
The family of metals having valency one.
Write the name from the description.
Nonmetals in the third period.
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 |
Write a short note on the following type of element –
transition elements
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.
What are the s-block elements?
d-block elements are called transition elements.
Group 3-12 elements in the modern periodic table are called d block elements.
Assertion (A): Group 2 elements in the modem periodic table are called alkaline earth metals.
Reason (R): The oxides of group 2 elements produce alkaline solutions when they are dissolved in water.
Match the columns:
| Column ‘A’ | Column ‘B’ |
| Manganese | (a) Metal |
| (b) Non-metal | |
| (c) Transition metal |
