EASY
8th ICSE
IMPORTANT
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An ion which has a positive charge is called a . (anion/ cation)

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Important Questions on Atomic Structure

EASY
8th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 8>Chapter 4 - Atomic Structure>Exercise>Q 1
The outermost shell of an atom is known as _____. (valence shell/ subshell)
EASY
8th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 8>Chapter 4 - Atomic Structure>Exercise>Q 1
The _____ of an atom is very hard and dense. (nucleus/ electron)
EASY
8th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 8>Chapter 4 - Atomic Structure>Exercise>Q 1
Neutrons are _____ particles having mass equal to that of protons. (neutral/ positive/ negative)
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