The chemical bahaviour of an atom depends upon
1). the number of protons in its nucleus
2). the number of neutrons in the nucleus
3). the number of electrons orbiting around the nucleus
4). the number of nucleons in the nucleus
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1. The fibre least prone to catch fire is
2. Question 4.17:Define electronegativity. How does it differ from electron gain enthalpy?
3. Which of the following processes is responsible for causing rain?
4. The major constituent of gobar gas is
6. Which one of the following contributes largely to the greenhouse effect ?
7. The major harmful gas emitted by automobile vehicle which causes air pollution is
8. Total number of elements in the Periodic table