Compare all the proposed models of an atom given in this chapter.
Thomson's model : A molecule comprises of an emphatically accused circle of electrons installed in it.
Rutherford's model : An atom comprises of a decidedly charged molecule assembled at the middle known as the nucleus. The size of nucleus exceptionally little when contrasted with the size of the atom. The electron spin around the nucleus in clear cut circles.
Bohr's model : There are just sure circles known as discrete circles inside the atom in which electrons rotate around the nucleus. Electrons don't emanate energy while rotating.
Complete the following table.
Atomic Number |
Mass Number |
Number of Neutrons |
Number of Protons |
Number of Electrons |
Name of the Atomic Species |
9 | - | 10 | - | - | - |
16 | 32 | - | - | - | Sulphur |
- | 24 | - | 12 | - | - |
- | 2 | - | 1 | - | - |
- | 1 | 0 | 1 | 0 | - |
NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:
Welcome to the NCERT Solutions for Class 9 Science - Chapter . This page offers a step-by-step solution to the specific question from Excercise 8 , Question 5: Compare all the proposed models of an atom given in this chapter.....
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