How many electrons does an atom have if it has a charge of -4 and an atomic number of 87?
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The element with atomic no. 87 has 87 electrons and 87 protons , due to the equal no. of electrons and protons the element is neutral.
But, the element has charge of -4 that means 4 more electrons are added in it to make it negatively charged.
Hence, no. of electrons present in the element having charge of -4 is 87+4 = 91 electrons.
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91 electrons
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