molecule
a particle is typically a pakage of mass too small to be considered an element an element is consisted of atoms, which are consisted of three particles called protons, neutrons, and electrons, which in turn are consisted of particles called quarks
A substance composed of two or more atoms of the same element is just a pure substance/element, a substance composed of different atoms is called a compound
Dalton's theory was based on five principle: 1.An element is fundamentally different from any other element. 2.All atoms of a each element are identical. 3. Atoms from one element can combine with atoms from another element to form compounds. 4. Atoms cannot be created or divided 5. Element are made of small particle called atoms.
The smallest particle of an element that still retains the chemical characteristics of that element is called an atom. Each element is made up of atoms, which are composed of protons, neutrons, and electrons.
A single particle of an element is called an atom. Atoms are the basic building blocks of matter, composed of protons, neutrons, and electrons. Each element is characterized by the number of protons in its atoms.
A proton is a positively charged subatomic particle found in the nuclei of atoms. The number of protons an element has in its atomic nuclei is its atomic number, and defines the element. A neutron is a subatomic particle that has no charge and is also found in the nucleus of an atom. The number of neutrons in the nuclei of an element can vary. Atoms of the same element that have different numbers of neutrons, giving them different mass numbers, are called isotopes.
A proton is a positively charged subatomic particle found in the nuclei of atoms. The number of protons an element has in its atomic nuclei is its atomic number, and defines the element. A neutron is a subatomic particle that has no charge and is also found in the nucleus of an atom. The number of neutrons in the nuclei of an element can vary. Atoms of the same element that have different numbers of neutrons, giving them different mass numbers, are called isotopes.
atoms
An atom is the smallest particle of an element that can be uniquely identified as that specific element.Note that this question is different from asking "What is the smallest particle in an atom?" (see related question below). Atoms are composed of smaller particles (protons, electrons, and neutrons), but the smallest thing that has the identity of a specific element is the atom.The smallest particle of an element that still retains all that element's properties is called an ATOM.
They are called isotopes,
atom and elements are different because one atom makes an element and a element is a pure substance and a atom is a basic particle
Atoms of different elements are different because they have different numbers of protons in their nuclei. Protons carry a positive charge and determine the element's identity.