Aerl Jay T. Aguillon
BSA 2
Problem 1.1
Give the ground-state electron configuration for each of the following elements:
a. Oxygen
1s² 2s² 2p⁴
b. Silicon
1s² 2s² 2p⁶ 3s² 3p
c. Sulfur
1s² 2s² 2p⁶ 3s² 3p⁴
Problem 1.2
How many electrons does each of the following elements have in its outermost
electron shell?
a. Magnesium - 2 Electrons
b. Molybdenum – 5 Electrons
c. Selenium – 6 Electrons
Problem 1.3
Draw a molecule of chloroform, CHCl₃, using solid, wedged, and dashed lines to
show its tetrahedral geometry.
Cl
H
C
Cl
Cl
Problem 1.4
Convert the following representation of ethane, C2H6₆, into a conventional
drawing
that uses solid, wedged, and dashed lines to indicate tetrahedral geometry
around
each carbon (gray=C, ivory H).
H
H
H
C
C
H
H
C
H
H
H
C
H
H
H
Problem 1.5
What are likely formulas for the following substances?
a. GeCl? GeCl4
b. AlH? AlH3
c. CH?Cl₂
CH2 Cl₂
d. SiF? SiF₂
e. CH₃NH?
CH₃NH₂
H