Atoms

= Atoms =

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Atoms are the basic building blocks of matter that make up everyday objects. All matter is made up of extremely tiny particles called atoms. Atoms cannot be seen with the naked eye. An atom is best described as a sun (nucleus) with the planets (electrons) all spinning around it. ======

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The central part of an atom is called it's nucleus it contains protons (positivily charged particles) and neutrons (neutrally charged particles). A nucleus is tiny when compared to the whole atom, yet it makes up for most of the mass of the atom. The electrons carry a negitive charge and orbit around the nucleus within the electron cloud. Protons carry a positive charge. Neutrons are neutral (No charge). ======

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 The atomic number of an atom gives the number of protons in the nucleus of an atom. This is always the same as the number of electrons in an atom. The mass number gives the number of protons plus the number of neutrons in the nucleus, and is always the bigger number out of the atomic number and mass no. The mass number is roughly double the atomic number. To find the number of neutrons you must minus the atomic number from the mass number. ======