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science
science education
Term | Definition |
---|---|
atom | the smallest particle of an element; made of electrons, protons, and neutrons |
atomic mass | the mass of an atom, approximately equal to the number of protons and neutrons in the atom |
electrical charge | a property of matter determined by the number of positively charged proton and negatively charged electrons in a material |
electron | a negatively charged subatomic particle located in the electron cloud; involved in the formation of chemical bonds |
electron cloud | the area surrounding the nucleus of an atom where the electrons are found |
neutron | a neutrally charged subatomic particle located in the nucleus of an atom; contributes to the mass of the atom |
nucleus | the tiny, very dense, positively charged region in the center of an atom that is made pup of protons and neutrons |
proton | a positively charged subatomic particle located in the nucleus of an atom; contributes to the mass of the atom |
subatomic particles | particles that are smaller than the atom |