1. Review Chapter 5 What is the equation that defines the maximum number of electrons in an energy level? ans: 2n 2 What is the maximum number of electrons in the 2 nd energy level? ans: 8 How many orbital in the d sublevel? ans: 5

2. The amount of energy absorbed or emitted to move an electron to a different energy level is called a(an) ans: quantum The cloud shape of highest probability for finding an electron is called the ans: orbital One electron in each orbital before filling? ans: Hund’s Rule

3. What is the speed of radiation with a wavelength of 2.3 x 10 -3 m? ans: 3 x 10 8 m/s constant What element has a valance of 4s 2 4p 2 ans: Ge What is the energy of a wave with a wavelength of 9.25 x 10 -7 m? ans: 2.2 x 10 -19 J Is the wave in above visible? Why? ans: yes with energy of 10 -19 J

4. How many orbital in ‘s’ sublevel? ans: one The model explained in Schrodinger’s equation that describes the arrangement of electrons is called: ans: Quantum Mechanical Model What is the valance for Sr? ans: 5s 2 What is the valance configuration for Sb ? ans: 5s 2 5p 3

5. What is the valance orbital diagram for Sb ? ans: The is the bases for the diagonal rule? ans: Aufbau principle What color of light has an energy of 2.7 x 10 -19 J ans: red What is the highest energy level for Co? ans: 4

6. What does Sn, Si and Pb have in common? ans: all have the same valance What is the dot diagram for Br, Si, Mn, Cs, As ans: What is the speed of x-ray with frequency of 8.89 x 10 18 Hz ans: 3 x 10 8 m/s What element has a valance of 5s 2 5p 5 ans I

7. Write the shorthand configuration for Ti ans: [Ar] 3d 2 4s 2 Which element has 3, ½ filled orbitals in the valance? ans: N, P, As, Sb, Bi What is the element that has [Kr] 5s 2 5p 4 ans: Te What is the dot diagram for [Ne] 3s 2 3p 2 ans:

8. What is the wavelength with a frequency of 94.7 MHz? ans: 3.17 m Find the energy of a photon with a wavelength of 52 nm? ans: 3.8 x 10 -18 J What is the radiation in the above question? ans: UV With 3.33 x 10 -13 J of energy what is the frequency? What is the radiation? ans 5.02 x 10 20 Hz, gamma ray

9. What is the element that has 3 electrons in the 3d sublevel? ans: V What is the element that has 2 electrons in the 4 d sublevel? ans: Zr How many filled orbitals are in the valance of S? ans: one filled in the s and one filled in the p How many halve filled orbitals are in the valance of S? ans: 2 halve filled orbitals

10. If 2 orbitals in the p sublevel are fill, how many are half filled? ans: one What element has 2 electrons in the 3s sublevel? ans: Mg What elements have a valance configuration of s 2 p 3 ? ans: N, P, As, Sb, and Bi What element has a 5s 1 as the valance? ans: Rb