Advertisements
Advertisements
प्रश्न
Write down the electronic configuration of
(i) chlorine atom (ii) chlorine ion
Advertisements
उत्तर
- Electronic configuration of chlorine = 2, 8, 7
- Electronic configuration of chlorine ion = 2, 8, 8
APPEARS IN
संबंधित प्रश्न
Mention the basic tendency of an atom which makes it to combine with other atoms.
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?
What type of bond is formed between two atoms, when the electronegative difference between them is High ?
What is the contribution of the following in atomic structure?
Democritus
What do you think would be the observation of `alpha` particle scattering experiment if carried out on (i) heavy nucleus like platinum (ii) light nuclei like litheum.
Give a reason
Physical properties of isotopes are different.
Complete the following table relating to the atomic structure of some elements.
|
Element Symbol |
Atomic Number |
Mass Number |
Numbers of neutrons |
Number of Electrons |
Number of Protons |
|
Li |
3 |
6 |
|
|
|
|
Cl |
17 |
|
20 |
|
|
|
Na |
|
|
12 |
|
11 |
|
Al |
|
27 |
|
|
13 |
|
S |
|
32 |
16 |
|
|
Explain the following:
Carbon-12 and carbon-14 both show similar chemical properties.
An atom X with atomic number 20 combines with atom Y with atomic number 8. Draw the dot structure for the formation of the molecule XY.
The valency of noble gases is ______.
