What are the fundamental particles of the atom., protons-ions-electrons, proton-neutron-electron, Atom-molecules-ions, Which particle possesses a negative electrical charge?, Proton, Neutron , Electron, Where are the electron found in the atom?, in the nucleus, in the electron cloud, What is the electrical charge of the neutron?, Positive, Negative , Null, Which particle has a negligible mass?, Proton, Neutron, Electron, How many principal parts is the atom formed of?, One, Two, Three, The nucleus of the atom is electrically., Negative, Neutral, Positive , In a neutral atom, the number of protons is.:, Greater than the number of electrons, Less than the number of electrons, Equal to the number of electrons, Which particles essentially give the mass of the atom, The electron cloud, The nucleons, The electrons, Why is the atom electrically neutral?, Because it doesn't contain electrons, Because the positive and negative charges compensate each other, Because the nucleus is empty .

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