If Silicon has 18 electrons and a mass number of 28, it would be classified as an and would have electrical charge equal to (enter a numerical answer with a charge sign in front of the number if necessary).
Question
If Silicon has 18 electrons and a mass number of 28, it would be classified as an and would have electrical charge equal to (enter a numerical answer with a charge sign in front of the number if necessary).
Solution
Silicon (Si) with 18 electrons is an ion, specifically an anion because it has more electrons than protons. Silicon normally has 14 electrons and 14 protons, so if it has 18 electrons, it has gained 4 extra electrons.
The electrical charge of an electron is negative, so Silicon with 18 electrons would have an electrical charge of -4.
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