If you are looking for NCERT Science Class 10 Chapter 5 Activity solutions, then you are in the right place. In this post, you will find NCERT Activity 5.8 Class 10 Science Explanation with conclusion.
NCERT Activity 5.8 Class 10 Science Explanation with conclusion
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suggested to study NCERT activity 5.8 class 10 science explanation with
conclusion so that you can attempt questions based on the activity 5.8 class 10
science.
Class 10 Science Chapter 5 Periodic Classification of Elements
Activity 5.8 Class 10 Science
· Study the variation in the atomic radii of the first group elements given below and arrange them in increasing order.
|
Group I elements |
Atomic radius (pm) |
|
Na |
186 |
|
Li |
152 |
|
Rb |
244 |
|
Cs |
262 |
|
K |
231 |
· Name the elements which have the smallest and the largest atoms.
· How does the atomic size as you go down a group?
Discussion
Increasing order of elements
|
Group I elements |
Atomic radius (pm) |
|
Li |
152 |
|
Na |
186 |
|
K |
231 |
|
Rb |
244 |
|
Cs |
262 |
· Lithium has the smallest (152 pm) atom while Cesium has the largest (262 pm) atom.
· Distance between the center of the nucleus and the electrons present in the valence shell increases when the increase in electrons shells. Therefore, the atomic size or atomic radius increases.
Related Topics for You
1. Activity 5.9 Class 10 Science
2. Activity 5.7 Class 10 Science
3. NCERT Solutions of Class 10 Science Chapter 5
5. Solutions of Class 10 Science all chapters
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