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The table shows a part of the periodic table, with some elements in their position. Answer the following questions: Name three elements of the same period.
Name the naturalist who put forward the theory of natural selection along with Darwin.
Who put forward the theory of natural selection? Explain the concept of differential reproduction as a major component of this theory.
What is modern periodic law? Mention the important features of the long form of the periodic table. Why is this periodic table supposed to be superior to other periodic tables ?
The period number in the long form of the periodic table is equal to
The period number in the long form of the periodic table is equal to
Which period of the periodic table contains maximum number of elements?
In third period of the long form of the periodic table that is from Na to Cl
How many elements are accommodated in the fifth period of the long form of the periodic table ?
Potassium belongs to which period of the periodic table?
ICSE-WHAT IS CHEMISTRY ABOUT ?-Exercises (Objective Questions) (True/False )
