An atom is made up of three particles called protons, neutrons and electrons. An atom is the most basic form of matter and can not be broken down any further.
Protons and neutrons come together in the center of the atom to form the nucleus. Electrons orbit the nucleus. These electrons are bound to the nucleus by an electromagnetic force. Protons have a positive charge, while electrons carry a negative charge. Neutrons do not have a charge. Protons and neutrons can be further divided into particles called quarks. Electrons can not be further broken down because they are fundamental particles. Atoms are the basic building blocks of matter. Atoms can join together to form molecules which make up most of life. All elements found on the periodic table are made up of atoms. Every atom has its own name, mass and size. Atoms can be present in various states of matter, such as a gas, liquid or solid. Atoms tend to move very fast in the gas form because the molecules are not very compact. In solid forms, atoms can not move at all because the molecules are packed tightly together. Liquids allow some room for movement but not as much as gases.Learn More
Discrete atoms are atoms that form extremely weak intermolecular forces, explains the BBC. Because of this property, molecules formed from discrete atoms have very low boiling and melting points.Full Answer >
Ernest Rutherford's famed Gold Foil Experiment of 1909 demonstrated that atoms were made up of a charged nucleus orbited by electrons. He published his findings in 1911 with a description of what he called the Rutherford model of the atom. While electrons had been described prior to this experiment, Rutherford was the first person to describe the existence of a small, charged atomic nucleus.Full Answer >
Atoms of zinc all have 30 protons in their nuclei. The proton count of an element is equal to its atomic number, which is listed in the upper-left corner of the element's box on the periodic table of elements.Full Answer >
Hydrogen atoms have a neutral charge, containing a single proton with a positive charge and a single electron with a negative charge. Unlike all other elements, hydrogen atoms contain no neutrons.Full Answer >