1. The law of Octaves' was proposed by:
2. Periodic classification of elements can be done on the basis of electronic configuration and is used to examine the
3. Which of the following resembles the 10th element in Newland's periodic classification?
4. Johann Dobereiner gave the idea of trends among physical and chemical properties of several groups of three elements, the relationship referred to as
5. Chemical properties of elements, according to Lothar Meyer, is the periodic function of their
6. Iron that resembles cobalt and nickel in properties has been kept far away from these elements. Which was one of its shortcomings-
7. In Mendeleev's periodic table, iodine with lower atomic weight than that of tellurium was placed alongwith
8. How many elements are there in the 5th Period of Modern Periodic Table?
9. Scientists named Newlands, Mendeleev and Mayer developed . . . . . . . .?
10. According to Newlands rule of octaves, . . . . . . . . which resembles cobalt and nickel in properties, is kept far away from these elements.
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