Elements having same atomic numbers but different mass number are called ______.
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The first important ruler to emerge from the Chola Dynasty was __________.
Which team Won the 2017 Santosh Trophy, the final of which was held in Bambolim, Goa.
Which of the following pairs is INCORRECT?
I. Haematite : Iron
II. Pitchblende : Copper
III. Monazite : Thorium
___ is the number of shells for elements of the 3rd period.
Metals can be given different shapes according to our needs because they posses the properties of
Factors that may influence enzyme activity?
The source of energy of the sun is
The transformation of Hydrogen atoms into Helium atoms with an emission of vast amount of energy is called nuclear fusion which is the source of energy for the Sun.
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