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प्रश्न
Write the names from the description.
Non-metals in the third period.
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उत्तर
The third period includes only 4 non-metals. These are as follows.
- Phosphorous (P)
- Sulfur (S)
- Chlorine (Cl)
- Argon (Ar)
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 names from the description.
The metalloids in the second and third periods.
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.
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 p-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.
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.
How are elements placed around the zig-zag line in the p-block of the periodic table?
