Quick Answer: What Is Atom Short Answer?

What is the atom?

An atom a fundamental piece of matter.

An atom itself is made up of three tiny kinds of particles called subatomic particles: protons, neutrons, and electrons.

The protons and the neutrons make up the center of the atom called the nucleus and the electrons fly around above the nucleus in a small cloud.

What is an atom simple definition?

The definition of an atom is the smallest component of an element, characterized by a sharing of the chemical properties of the element and a nucleus with neutrons, protons and electrons.

What is Atom and example?

Neutrons have the same mass as protons but a neutral charge. The element helium, for example, contains atoms with two protons in the nucleus. The element iron contains atoms with 26 protons. The element oxygen contains atoms with eight protons. And the element gold contains atoms with 79 protons.

What is atom or molecule?

A molecule is the smallest particle in a chemical element or compound that has the chemical properties of that element or compound. Molecules are made up of atoms that are held together by chemical bonds. These bonds form as a result of the sharing or exchange of electrons among atoms.

What are 4 types of atoms?

There are many different types of atoms, each with its own name, atomic mass and size. These different atoms are called chemical elements. Atoms join together to make molecules: for example, two hydrogen atoms and one oxygen atom combine to make a water molecule.

What is an atom for kids?

Science >> Chemistry for Kids. The atom is the basic building block for all matter in the universe. Atoms are extremely small and are made up of a few even smaller particles. The basic particles that make up an atom are electrons, protons, and neutrons. Atoms fit together with other atoms to make up matter.

What is the best definition of an atom?

An atom is a particle of matter that uniquely defines achemical element. An atom consists of a central nucleus that is usually surrounded by one or more electrons. Each electron is negatively charged. The nucleus is positively charged, and contains one or more relatively heavy particles known as protons and neutrons.

What is the full form of atom?

Academic & Science » Chemistry. Rate it: ATOM. Automated Operation Manual.

What best describes a atom?

The smallest unit of an element, consisting of at least one proton and (for all elements except hydrogen) one or more neutrons in a dense central nucleus, surrounded by one or more shells of electrons. In electrically neutral atoms, the number of protons equals the number of electrons.

Who discovered an atom?

John Dalton was the first to adapt Democritus’ theory into the first modern atomic model. J.J Thomson was a physicist who is credited for discovering the electron. He used his research on cathode ray tube technology in this discovery. 3.

Where can u find atoms?

Electrons are the smallest of the three particles that make up atoms. Electrons are found in shells or orbitals that surround the nucleus of an atom. Protons and neutrons are found in the nucleus. They group together in the center of the atom.

Who invented atom?

An English Chemist and Mathematician – John Dalton was the first person to scientifically prove that matter consists of indivisible discrete particles. Dalton developed an atomic theory in 1803. Subsequently, Ernest Rutherford, a famous scientist of Briton developed a modern concept of the atomic structure.

Which is the smallest atom or molecule?

Physical matter is made up of atoms and molecules. An atom is the sub-component of a molecule, or the smallest unit of matter. It is the smallest part an element can divide into. A molecule is made up of atoms that are bound by ionic, covalent or metallic bond.

How do atoms exist?

Atoms exist in free states in the form of molecule. Molecules may be formed by the combination of atoms of two or more different elements. For example molecule of water. It is formed by the combination of two atoms of hydrogen and one atom of oxygen.

How do you explain atoms?

Atoms consist of a nucleus made of protons and neutrons orbited by electrons. Atoms are the basic units of matter and the defining structure of elements. The term “atom” comes from the Greek word for indivisible, because it was once thought that atoms were the smallest things in the universe and could not be divided.