The Works Of Dalton, Millikan, Rutherford, Moseley, Thompson, Bohr Jamb Chemistry Past Questions
Question 1
The above orbital diagram shown the electronic configuration of
- A. chlorine
- B. nitrogen
- C. calcium
- D. neon
Question 2
Rare gases are stable because they
- A. are monoatomic
- B. form ions easily
- C. have duplet or octet electronic configuration in the outermost shells in their atoms
- D. are volatile gases
Question 3
Electronic configuration of an element 13 in the subsidiary energy level is
- A. \( 1s^2 2s^2 2p^6 3s^2 3p^1 \)
- B. \( 1s^22s^2 2p^4 3p^1 3s^1 \)
- C. \( 1s^2 2s^2 2p^6 3s^2 3p^3 \)
- D. \( 1s^1 2s^2 2p^6 3s^2 3p^4 \)
Question 4
How many unpaired electron are in the p-orbitals of a fluorine atom?
- A. 3
- B. \( 0 \)
- C. 1
- D. 2
Question 5
The following are isoelectronic ions except
- A. Na\(^+\)
- B. Mg\(^{2+}\)
- C. Si\(^{2+}\)
- D. O\(^{2+}\)
