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प्रश्न
Write the name from the description.
Nonmetals in the third period.
उत्तर
The third period includes only 4 non-metals. These are as follows.
Phosphorous (P), Sulfur (S), Chlorine (Cl), and Argon (Ar).
Where phosphorous and sulfur are found in solid-state into nature. And chlorine and argon are gases.
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संबंधित प्रश्न
Write the name from the description.
The family of metals having valency two.
Write the name from the description.
The metalloids in the second and third periods.
What is the main characteristic of the last elements in the periods of a periodic table? What is the general name of such elements?
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 –
inner transition elements
Write a short note on the following type of element –
normal elements
State whether true or false. If false, correct the statement.
Group 17 elements are named as Halogens.
d-block elements are otherwise known as ______.
f-block elements are also known as ______.
______ block element is placed at the bottom of the periodic table.
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): Noble gases are chemically inert in nature.
Reason (R): Noble gases have stable electronic structures.
Match the columns:
| Column ‘A’ | Column ‘B’ |
| Manganese | (a) Metal |
| (b) Non-metal | |
| (c) Transition metal |
Answer the following questions related to the modern periodic table.
Which block elements are known as transition elements?
Answer the following questions related to the modern periodic table.
How are elements placed around the zig-zag line in the p-block of the periodic table?
