when chlorine gains an electron to become a chloride ion with a -1 charge it ends up with the electron configuration of argon why doesn't it become an argon atom​

c. 75.7

i think that is the right

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