an atom
A substance that is composed of only one kind of matter is called an element. The smallest particle of an element is called an atom.
An "element" is not a subatomic particle. Your question makes no sense and is therefore unanswerable.Another answer:Since an element is not a subatomic particle, the only answer can be a proton.
native element
Hydrogen ion.
An element is composed of only one kind of atom. A compound is composed of atoms of more than one element.
Element
There are many subatomic particles with negative charge, but the first negatively charged particle that anyone learns about is the electron. It is only invisible in the sense that humans can not see it because it is so small. It is a perfectly normal subatomic particle and certainly the most common negatively charged particle in the universe.
A positively charged nuclear particle is a proton. It is found in the nucleus of an atom and carries a positive electrical charge.
A pure substance is a material that is composed of only one type of particle or element. It has a definite and constant composition with uniform properties throughout. Examples include elements like gold or compounds like water.
When a charged particle moves and experiences no magnetic force, it means that either the magnetic field is zero or the magnetic field is perpendicular to the velocity of the charged particle. As a result, the particle will only experience the electric force, causing it to follow a straight path according to the Lorentz force law.
What is composed of only one type of molecule
Protons are the only '+' particles in the (nucleus of an) atom.