From the Group 6A elements shown in the diagram, the element with the largest atomic radius is ___. In Period 3, the element with the largest atomic radius is ___. The three atoms which would form ions which are smaller in size than their parent atoms are Al, Mg, and ___. In Period 3,___ has the highest ionization energy, while in Group 6A ___ has the highest ionization energy. O; Ar; Na; Na; O

O; Ar; Cl; Na; Se

Se; Na; Na; Ar; O

Se; Na; Cl; Ar; Se

specific gravity is the density of a substance divided by the density of water. since (at standard temperature and pressure) water has a density of 1 gram/cm3, and since all of the units cancel, specific gravity is usually very close to the same value as density

so "c" is the answer

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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