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Chapter three
Question | Answer |
---|---|
Atom | basic unit of mass |
Plum-Pudding Model | atom diagram only consisting of electrons |
Gold-Foil Experiment | otherly known as the Alpha scatter Experiment...came to conclusions that atom is mostly empty space and theres a small positive nucleus core |
Orbitals | clouded area where electrons are located |
Nucleus | small positive core of an atom |
Electron | negative charged particles of an atom |
Neutron | The neutrally charged particles of an atom |
Mass Number | Total of protons and neutrons |
Atomic number | number of protons and electrons |
Ion | non-neutral gained or lost electrons |
Isotope | different types of atoms |
Atomic Mass | weighted average of the naturally occuring isotopes |
Valence electrons | electrons in outermost shell |
Octet | 8-to have 8 electons per cloud |
Excited State | When electrons jump to a higher energy level |
Ionization Energy | amount of energy needed to remove an electron |
Electron Affinity | energy change when an electron is added to the neutral species to form a negative ion |
Electronegativity | describes an atoms ability to attract electrons(sexiness) |