EASY
8th ICSE
IMPORTANT
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Neutrons are particles having mass equal to that of protons. (neutral/ positive/ negative)

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Important Questions on Atomic Structure

MEDIUM
8th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 8>Chapter 4 - Atomic Structure>Exercise>Q 2
An atom on the whole has a positive charge.
EASY
8th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 8>Chapter 4 - Atomic Structure>Exercise>Q 2
The maximum number of electrons in the first shell can be 8.
EASY
8th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 8>Chapter 4 - Atomic Structure>Exercise>Q 2
The central part of an atom is called nucleus.
EASY
8th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 8>Chapter 4 - Atomic Structure>Exercise>Q 4
The outermost shell of an atom is known as
HARD
8th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 8>Chapter 4 - Atomic Structure>Exercise>Q 4
The number of valence electrons present in magnesium is
EASY
8th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 8>Chapter 4 - Atomic Structure>Exercise>Q 4
The sub-atomic particle with positive charge is
HARD
8th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 8>Chapter 4 - Atomic Structure>Exercise>Q 4
If the atomic number of an atom is 17 and the mass number is 35, then the number of neutrons will be
EASY
8th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 8>Chapter 4 - Atomic Structure>Exercise>Q 4
The number of electrons in an atom is equal to the number of