1. What does the flame test prove about the inner structure of atom?
A. The atom has a nucleus.
B. The nucleus is positively charged.
C. The electrons are found outside the nucleus.
D. The electrons carry discreet or fixed energy.
2. What happens to the energy of an electron as it goes farther from the nucleus?
A. Its energy increases.
B. Its energy decreases.
C. Its energy becomes fixed.
D. Its energy does not change.
3. Copper chloride when heated emits blue light. What is the origin of this blue light?
A. The nucleus radiates energy.
B. The electron loses energy as it moves around the nucleus.
C. The electron absorbs energy as it jumps to a higher energy level.
D. An excited electron loses energy as it returns to a lower energy level.
4. Which of the following energy levels can accommodate a maximum of 18 electrons?
A. 1st energy level
B. 2nd energy level
C. 3rd energy level
D. 4th energy level
5. An atom with 32 electrons has ______ energy levels.
A. 2 B. 2 C. 3 D. 4
6. How many sublevels are in L energy level?
A. 1 B. 2 C. 3 D. 4
7. How many atomic orbitals are in p sublevel?
A. 1 B. 2 C. 3 D. 4
8. How many electrons can the d orbital holds?
A. 2 B. 6 C. 10 D. 14
9. Which of the given atomic orbitals is of higher energy?
A. 1s B. 2s C. 2p D. 3p
10. Which is the electron configuration of Oxygen (8e-)?
A. 1s22s22p6 B. 1s22s22p4 C. 1s22s32p3 D. 1s12s22p3 ​