Neutrons belong to the family of particles known as hadrons. Neutron A subatomic particle carrying no electric charge that is one of the basic pieces of matter. For example, the oxygen in the air is made of two oxygen atoms (O 2), but water is made of two hydrogen atoms and one oxygen atom (H 2O). Molecules can be made of single types of atoms or of different types. Molecule An electrically neutral group of atoms that represents the smallest possible amount of a chemical compound. Ion An atom or molecule with an electric charge due to the loss or gain of one or more electrons. Compounds that contain chlorine are called chlorides.Įlectric charge The physical property responsible for electric force it can be negative or positive.Įlectron A negatively charged particle, usually found orbiting the outer regions of an atom also, the carrier of electricity within solids. All bonds appear to link atoms through a sharing of - or an attempt to share - electrons.Ĭhlorine A chemical element with the scientific symbol Cl. Some of the attractive forces are weak, some are very strong. The nucleus is orbited by a cloud of negatively charged electrons.Ĭhemical bonds Attractive forces between atoms that are strong enough to make the linked elements function as a single unit. Atoms are made up of a dense nucleus that contains positively charged protons and neutrally charged neutrons. Positively and negatively charged ions can bond together to create a neutral chemical, such as a salt.įollow Eureka! Lab on Twitter Power Words (for more about Power Words, click here)Ītom The basic unit of a chemical element. When electrons outnumber the protons, the resulting ion is negatively charged. But when there are more protons than electrons, the molecule or atom will be an ion with a positive charge. When there are equal numbers of protons and electrons, the charges cancel each other out. The protons have a positive charge and the electrons have a negative charge. Atoms are made of protons, neutrons and electrons. An ion is an atom or molecule that has an electrical charge.
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