EASY
9th ICSE
IMPORTANT
Earn 100

In a neutral atom, the atomic number is equal to the number of (Generally atomic number is equal to the number of protons).

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Important Questions on Atomic Structure and Chemical Bonding

EASY
9th ICSE
IMPORTANT
Deuterium and tritium are _____ of hydrogen.
EASY
9th ICSE
IMPORTANT
_____ bond is formed by the mutual sharing of electrons between the combining atoms of the same or different elements.
EASY
9th ICSE
IMPORTANT
Which of the following rays is deflected under electric field?
EASY
9th ICSE
IMPORTANT
Thomson's atomic model is also called
EASY
9th ICSE
IMPORTANT
Distribution of electrons into different shells of an atom was suggested by
EASY
9th ICSE
IMPORTANT
The formula used to represent the maximum number of electrons present in a shell
EASY
9th ICSE
IMPORTANT
Which isotope of hydrogen is used in making heavy water?
EASY
9th ICSE
IMPORTANT

Match the following columns.

Column I

(Properties of Chlorine)

Column II

(Value)

(i) Atomic number (a) 1
(ii) Total number of shells (b) 3
(iii) Atomic mass (approx.) (c) 7
(iv) Valency (d) 17
(v) Number of valence electrons (e) 35