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प्रश्न
Name the following:
Two atoms having the same number of protons and electrons but different number of neutrons.
उत्तर
Hydrogen and carbon
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संबंधित प्रश्न
Explain the following briefly:
Helium does not form He2 molecule
Among the following compounds identify the compound that has all three bonds (ionic, covalent and coordinate bond).
Elements X, Y, and Z have atomic numbers 6, 9 and 12 respectively. Which one :
State type of bond between Y and Z and give its molecular formula.
What is an α (alpha) particle?
Five atoms are labeled 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 electronic configuration 2,7
(b) Write down the formula in the compound formed between C and D
(c) Predict : (i) metals (ii) non-metals
Give the orbital diagram of the following:
Nitrogen
Give the orbital diagram of the following:
Hydrogen chloride
Draw the electron distribution diagram for the formation of Carbon di oxide (CO2 ) molecule.
Spot the error/correct the wrong statement:
In the formation of compounds, the inner shell electrons of an atom involved in bonding.
| Name of compound | Type of compound | |
| a. | Sodium chloride | ______ |
| b. | ______ | co-ordinate covalent compound |
| c. | Methane | ______ |
| d. | Fluorine molecule | ______ |
