Which component of the atom have a positive charge

electrons

protons

all components have a positive charge

neutrons

protons

Explanation:

An atom is the smallest entity of a substance which consists of three subatomic particles called as neutrons, protons and electrons.

The most of the mass of the atom is concentrated in the centre of an atom and is called as nucleus. Protons and neutrons are collectively called as nucleons as they are present in the nucleus.

Electrons revolve around the nucleus in fixed energy paths called as orbitals.

Protons carry positive charge, electrons carry negative charge and neutrons does not carry any charge.

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