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Chemistry CBSE Live product
Class 9
Structure of the atom
Valency and its role in chemical bond formation
3.
Valency
Question:
2
m.
Choose
the best answer for the question given below:
1.
Which term is defined as the combining capacity of an element?
Atomic number
Valency
Atomic mass
Ionization energy
2.
Noble gases are chemically inert because:
They have empty shells
They contain no neutrons
They can lose elctrons easily
They have completely filled outermost shells
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