Element.
A substance that contains only one type of atom is called an "element".
Matter that contains only one type of atom (examples: Gold, silver, copper, iron, calcium, iodine, chlorine)
only contains one atom
Element
That is a privately minted silver round, valued only for the ounce of silver it contains -- currently about $17
Quartzite
all
A neutron star is a type of compact star that is composed almost entirely of neutrons and contains only one star.
Haploid
Just silver. Silver is an element, so by definition, it's only composed on one type of atom - silver atoms.
The answer is all elements... hope i helped
It is true. A compound contains two or more different type of atoms.