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प्रश्न
Element M forms a chloride with the formula MCl2 which is solid with a high melting point. What type of bond is in MCl2. Write the formula of the compound when M combines with sulphur, oxygen, and nitrogen.
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उत्तर
The bond formed between metal and nonmetal is an ionic bond.
The bond formed between metal M and chlorine is an ionic bond.
When metal M combines with sulphur – MgS
When metal M combines with oxygen – MgO
When metal M combines with nitrogen – Mg3N2.
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संबंधित प्रश्न
Elements A, B and C have atomic number 17, 19 and 10 respectively.
- State which one is:
- a non-metal
- a metal,
- chemically inert?
-
Write down the formula of the compound formed by two of the above elements.
Five atoms are labelled from A to E.
| Atoms | Mass No. | Atomic No. |
| A | 40 | 20 |
| B | 19 | 9 |
| C | 7 | 3 |
| D | 16 | 8 |
| E | 14 | 7 |
(a) Which one of these atoms:
(i) contains 7 protons,
(ii) has an electronic configuration 2, 7?
(b) Write down the formula of the compound formed between C and D.
(c) predict which are: (i) metals, (ii) non-metals?
Give electron dot diagram of the following:
Magnesium chloride
Separate the following compounds into three categories - ionic, polar and covalent compounds; N2, NH4Cl, NH3, NO, NH4NO3, NCl3.
Elements X, Y, and Z have atomic numbers 6, 9 and 12 respectively. Which one forms a cation?
Name an element which does not contain neutron.
Give a reason
Physical properties of isotopes are different.
Potassium (at No.19) and chlorine (at No.17) react to form a compound. Explain the formation of the compound on the basis of oxidation.
Why are Noble gases inert in nature?
How many electrons are required or released by each atom in carbon tetrachloride to attain the nearest noble gas configuration?
