an element is a substance rested with only one and ONE substance
hydrogen
No. An element is a pure substance made of only one kind of atom. A compound is a pure substance made of two or more kinds of atom.
An element is a substance made up of only one kind of atom and cannot be broken down by chemical reactions.
element
An element is a substance made of only one kind of atom. There are 92 naturally occurring elements on the periodic table. Each element is characterized by a unique number of protons in its nucleus.
A substance made up of only one kind of atom is an element, which is a pure substance.
A substance made up of only one kind of atom is an element.
element
hydrogen
Element
This is an isotope of a chemical element.
Element
No. An element is a pure substance made of only one kind of atom. A compound is a pure substance made of two or more kinds of atom.
This is an isotope of a chemical element.
element
A substance that only contains one kind of atom is called an element.
An element is a substance made up of only one kind of atom and cannot be broken down by chemical reactions.