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9th CBSE
IMPORTANT
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The maximum number of electrons in the N shell of an atom is

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Important Questions on Structure of Atom

EASY
9th CBSE
IMPORTANT
Core science chemistry>Chapter 4 - Structure of Atom>EXERCISE 4A>Q 45
The maximum number of electrons in the K-shell of an atom is:
EASY
9th CBSE
IMPORTANT
Core science chemistry>Chapter 4 - Structure of Atom>EXERCISE 4A>Q 46
A neutral atom contains 11 protons, 12 neutrons and 11 electrons. The atom is of: 
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9th CBSE
IMPORTANT
Core science chemistry>Chapter 4 - Structure of Atom>EXERCISE 4A>Q 47
The helium nuclei ejected by some radioactive elements are commonly called:
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9th CBSE
IMPORTANT
Core science chemistry>Chapter 4 - Structure of Atom>EXERCISE 4A>Q 48
The smallest electric charge which cannot be subdivided is:
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9th CBSE
IMPORTANT
Core science chemistry>Chapter 4 - Structure of Atom>EXERCISE 4A>Q 1
Who discovered the positively charged rays? 
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9th CBSE
IMPORTANT
Core science chemistry>Chapter 4 - Structure of Atom>EXERCISE 4A>Q 2
Who discovered the nucleus within an atom? 
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9th CBSE
IMPORTANT
Core science chemistry>Chapter 4 - Structure of Atom>EXERCISE 4A>Q 3
State the main drawback in Rutherford's structure of an atom.
EASY
9th CBSE
IMPORTANT
Core science chemistry>Chapter 4 - Structure of Atom>EXERCISE 4A>Q 4
Who discovered neutrons?