An element.
An Element
An element
an element
An Element is the substance consisting of only one type of atom
By definition, an Element contains only one kind of atom - atoms of that element. If it has more than one kind, it is a compound, not an element.
An element is the correct answer
A substance that is made up of only one atom is called a pure substance. A pure substance is also called an element on the Periodic Table.
element
an element
A compound
An Element is the substance consisting of only one type of atom
A substance made up of only one kind of atom is an element.
A substance made up of only one kind of atom is an element, which is a pure substance.
H+ a hydrogen ion, is actually just a proton... I'm not sure if that's what you were asking.
By definition, an Element contains only one kind of atom - atoms of that element. If it has more than one kind, it is a compound, not an element.
an element is a substance rested with only one and ONE substance
Element is a substance made up of only one atom that can not be split into two atoms and compound is a substance which contains two or more element chemically combined together.
They are elements.
An element.