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4 Kenji REVIEW SCIENCE 8 Who am I - Electron MULTIPLE CHOICE
Quiz by Deniega, Megumi Kaye D.
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Which particle has a negative electric charge?
The nucleus of an atom contains:
Which of the following particles has no electric charge?
The number of protons in an atom determines its:
What happens if an atom gains an electron?
Who proposed the first modern atomic theory that described atoms as tiny, indivisible particles?
Who discovered the electron using the cathode ray experiment?
Who proposed the nuclear model of the atom, where a dense nucleus is surrounded by mostly empty space?
Who suggested that electrons move in fixed orbits or energy levels around the nucleus?
Who developed the quantum mechanical model, describing electrons as waves in probable regions called orbitals?