Advertisements
Advertisements
प्रश्न
- Go through the modern periodic table and write the names one below the other of the elements of group 1.
- Write the electronic configuration of the first four elements in this group.
- Which similarity do you find in their configuration?
- How many valence electrons are there in each of these elements?
लघु उत्तर
Advertisements
उत्तर
1. Four elements of group 1:
- Hydrogen (H)
- Lithium (Li)
- Sodium (Na)
- Potassium (K)
2.
| Elements | Electronic configuration |
| Hydrogen | 1 |
| Lithium | 2, 1 |
| Sodium | 2, 8, 1 |
| Potassium | 2, 8, 8, 1 |
3. These elements' valence electrons exhibit similarities. These "elements" have one valence electron.
4. Each of these elements has a single valence electron.
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
