number of electrons in 20 to 30 electrons
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what is the question.....
manogna3:
the question is how many electrons are thee in 20 to 30 atoms
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For a neutral atom, the number of electrons is the same as the number of protons.
Often, the number of protons and electrons is not the same, so the atom carries a net positive or negative charge. You can determine the number of electrons in an ion if you know its charge. A cation carries a positive charge and has more protons than electrons. An anion carries a negative charge and has more electrons than protons. Neutrons do not have a net electric charge, so the number of neutrons does not matter to the calculation.
The number of protons of an atom cannot change, so you add or subtract electrons to get the correct charge. If an ion has a 2+ charge, like Zn2+, this means there are two more protons than electrons.
30 - 2 = 28 electrons
If the ion has a 1- charge (simply written with a minus superscript), then there is more electron than the number of protons.
Often, the number of protons and electrons is not the same, so the atom carries a net positive or negative charge. You can determine the number of electrons in an ion if you know its charge. A cation carries a positive charge and has more protons than electrons. An anion carries a negative charge and has more electrons than protons. Neutrons do not have a net electric charge, so the number of neutrons does not matter to the calculation.
The number of protons of an atom cannot change, so you add or subtract electrons to get the correct charge. If an ion has a 2+ charge, like Zn2+, this means there are two more protons than electrons.
30 - 2 = 28 electrons
If the ion has a 1- charge (simply written with a minus superscript), then there is more electron than the number of protons.
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