8. Please match the orbital type with the correct number of orbitals. (4 points)

Question

8. Please match the orbital type with the correct number of orbitals. (4 points) a. 9 b. 3 C. d. 2 f. 5 9. 7 h. 10 9. Which of the following states the Aufbau Principle? (1 point) Electrons occupy orbitals of the same energy in a way that makes the number of with the same spin direction as large as possible. An atomic orbital may describe at most two electrons. Electrons occupy the orbitals of lowest energy first 10. How many valence electrons does an atom of Oxygen have? poine 2 6 11. Perlods describe on the peric table poirt Search the web and Windows

Explanation / Answer

Q8)

sublevel number of orbitals

s 1

p 3

d 5

f 7

Q9)

Aufbau principle states that the electrons occupy the lowest energy level avaialble first.

OPTIOn C

Q10)

Oxygen has atomic number 8

Thus its configuration is 1s2 2s2 2p4

the valence shell is 2 , which has 6 electrons.

Thus the number of vlence electrons in oxygen atom are 6.

Q11)

Periods describe the horizontal rows of the periodic table while

groups describe the vertical columns of the periodic table.

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