Class 9 Chemistry MCQs - Chapter 4
Periodic Table and Periodicity Multiple Choice Questions (MCQs) PDF Download - 5
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Periodic Table and Periodicity MCQs with Answers PDF Download: Quiz 5
Physical properties depend on the
- size of atom
- size of proton
- size of neutron
- no. of electrons
Elements that lie in the same column have
- similar properties
- different properties
- same physical properties
- different chemical properties
As we go from left to right across the period, the electron affinity
- increases
- decreases
- remains same
- all of above
Elements are arranged in order of
- decreasing atomic number
- decreasing atomic mass
- increasing atomic number
- increasing atomic mass
The decrease in the force of attraction between valence electrons and nucleus by inner electrons is called
- screening effect
- shielding effect
- photoelectric effect
- dopler effect
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