1. Modern periodic law had been given by—
A. Mendeleev
B. Lavoisier
C. Moseley
D. Lother-Mayer
2. Which one is known as the father of periodic table?
A. Mendeleev
B. Lavoisier
C. Neil Bohr
D. Rutherford
3. The vertical lines in the modern periodic table are called—
A. Non-metal
B. Group
C. Period
D. None of the above
4. The horizontal lines in the modern periodic table are called—
A. Metal
B. Group
C. Period
D. None of the above
5. How many periods are present in the modern periodic table?
A. 7
B. 8
C. 6
D. 2
6. How many groups are present in the modern periodic table?
A. 18
B. 17
C. 16
D. 15
7. The elements in group zero are called—
A. Inert gases
B. Transition metals
C. Alkali metals
D. None of the above
8. All the elements in a group in the periodic table have the same—
A. Same number of valence electrons
B. Atomic number
C. Atomic weight
D. None of the above
9. Which of the following element(s) are/is new in the periodic table?
A. Nihonium (Nh, 113) and Moscovium (Mc, 115)
B. Tennessine (Ts, 117) and Oganesson (Og, 118)
C. Both (A) and (B)
D. None of the above
10. In year 2016 , in which month new elements were found in the periodic table?
A. February
B. January
C. March
D. April
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