Chemistry

Atom properties

• Atoms consist of three sub-atomic particles-
• Protons
• Neutrons
• Electrons
• Each have their own charge and mass-
• Proton: +1, 1
• Neutron: 0, 1
• Electron: -1, 1/1835
• Where are they found-
• Proton: nucleus
• Neutron: nucleus
• Electron: shells
• Why?-
• proton: nucleus because it has a positive charge
• Neutron: nucleus because it has a neutral charge so it has no overall impact on the charge of an atom
• Electron: shells because in an atom there’s the same number of protons and electrons because opposite charges attract so the overall charge of an atom is neutral.
• Atomic (proton) number-
• how many protons are in one atom of an element
• Also this number also tells you how many electrons the atom has because they are equal.
• Mass number-
• total number of protons and neutrons in one atom of an element.
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• Bildunterschrift: An atom - consisting of its three sub-atomic particles