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प्रश्न
Name and state the following with reference to the elements of the first three periods of the periodic table.
A covalent compound formed by an element in period 2 and a halogen.
उत्तर
Carbon tetrachloride (CCl4)
APPEARS IN
संबंधित प्रश्न
State modern periodic law.
How do the atomic radii of elements change as we go from left to right in a period of the periodic table?
Explain why All the elements of a period have different chemical properties.
An element A has 2 electrons in its fourth shell. State its electronic configuration.
Give the chemical formula of sodium bicarbonate
Give the chemical formula of ammonium sulphate
What are the elements.
An X element with atomic number 11 and Y element with atomic number 13 belongs to the third period in the modern periodic table. With this information, give the answers of the below questions.
- Which element has more metallic character from these two elements?
- What is the valency of each X and Y elements?
- Atom size of Y element is smaller than atom size of X element. Explain.
A part of modern periodic table is given below. On its basis, answer the following questions:
| Group No. → | 1 | 2 | 13 | 14 | 15 | 16 | 17 | 18 |
| Period ↓ | ||||||||
| 2 | A | B | ||||||
| 3 | E | D | F | C |
Which of the element is a Metalloid?
An element has 2 electrons in its N shell.
State its position in periodic table.
