Because they contain only one type of atoms (with same number of protons).
no, because the simplest form of substance are elements
The simplest substance in chemistry is the element, because elements cannot be broken down, only changed. Of the elements, the smallest and simplest is hydrogen.
A chemical element. All the known chemical elements are listed in the 'periodic table'.
Atoms of the elements are the simplest particles of compounds. The definition of an element is a substance that cannot be broken down into a simpler substance or interconverted.
Element is the simplest form of substance while compound is a substance of combined elements. Compound can be broken down into simpler substances which maybe are another form of compounds or just in the simplest state which are elements
They are the simplest of substances and cannot be broken down into any other substance.
The simplest substance known is the hydrogen atom. It is the most abundant element in the universe and consists of just one proton and one electron. All other elements in the periodic table are built by combining hydrogen atoms with other atoms through nuclear fusion processes.
The simplest pure substance is called an element. Elements are made up of only one type of atom and cannot be broken down further by chemical means. Examples of elements include oxygen, carbon, and gold.
The simplest type of substance is an element. They cannot be split up even by chemical reactions. There are over 100 elements, and the Periodic Table is a list of them.
Elements.
The simplest organized substance known is probably elemental hydrogen, with each atom consisting of just one proton and one electron. Hydrogen is the lightest and most abundant element in the universe.
Representative elements are the elements also known as the lanthanides. Source: Chemistry teacher