1. The center of the atom is called the (10 Points)
O nucleus
O protons
electrons
neutrons

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

b) nuclear ive learned that in a pedtrodic table