Class 9 Chemistry MCQs - Chapter 4
Periodic Table and Periodicity Quiz Questions & Answers PDF Download - 3
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Periodic Table and Periodicity Exam Questions and Answers PDF Download: Test 3
Period number of the element indicates the value of
- all shells
- valence shell
- 1st shell
- 2nd shell
The ability of an atom to attract electrons towards itself is called
- electron affinity
- electronegativity
- ionization energy
- shielding effect
The average distance between the nucleus and outer shell is called
- atomic size
- nuclear size
- shielding effect
- atomic number
The horizontal rows of the periodic table are called
- rows
- periods
- columns
- groups
The shielding effect across the period
- increases
- decreases
- becomes equal to above periods
- remains same
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