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Consider the silicon 29 isotope How many protons and neutrons and electrons will it have?
Wiki User
∙ 14y ago
All silicon atoms have 14 electrons and 14 protons. That is a rule that every silicon atom must follow. On the Periodic Table, the number next to the atom is the number of electrons/protons in an atom (silicon is the 14th element listed on the periodic table, hence the 14 electrons and 14 protons).
The number "29" is the number of protons and neutrons together. This number can change with changing isotopes. So, if every silicon atom must have 14 protons, and 29 is the number of protons and neutrons together, so the number of neutrons must be 29 minus 14.
Final:
14 protons
14 electrons
15 neutrons
Wiki User
∙ 14y ago
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