CHAPTER 4 STRUCTURE OF THE ATOM (SET-2)

Questions in this test

1. Which of the following pairs of isobars?
2. Radioactive element is used in the treatment of Cancer, what is it?
3. What is the maximum number of electrons that an atom can accommodate in the M shell?
4. Most of the elements try to participate in the chemical combinations, why?
5. Valency of fluorine atoms is ________.
6. Isotopes of hydrogen atoms are ________.
7. The mass of doubly charged helium ions is _________
8. Most of the α-particles passed _________ through the gold foil. It proves the existence of empty space in an atom.
9. The electron distribution in an aluminum atom is _________
10. Sodium atom and sodium ion differ by _________