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Subjects
Science CBSE
Class 9 New
Journey inside the atom
Pumpa Practice Questions
11.
Energy shells and atomic models
Exercise condition:
1
m.
Choose
the
best option
answer:
Assertion (A)
Rutherford's model successfully explained the stability of atoms.
Reason (R)
Bohr proposed that electrons move in fixed energy levels called stationary states.
Both A and R are true, and R is the correct explanation of A
Both A and R are true, but R is not the correct explanation of A
A is true, but R is false
A is false, but R is true
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