Draw a Lewis structure of the following compounds. Be sure to show your work in determining the number of electron pairs used in the molecule. For each drawing,
determine;
A) Molecular shape.
B) Type of hybridization.
C) Pure, polar, or ionic bonds.
D) Polar or nonpolar molecule.
SF2
A
B
С
D
CCIH
A
B
С
D

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer

the density of gold = 19.3 g/cm3

the relation between density and mass and volume is

density = mass / volume

given :

mass of gold = 13 g

density = 13g / volume = 19.3

volume = 13 /19.3 = 0.67 cm^3

thus volume of gold nugget = 0.67 cm^3