if element x has 55 protons how many electrons does it have
Chemistry · High School · Tue Nov 03 2020
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Determine the number of electrons that element x have, if the number of protons is 55.
To determine the number of protons, we look at the corresponding equivalents of each value in the periodic table of elements.
Atomic Number = Number of Protons = Number of Electrons
Mass Number = Number of Protons + Number of Neutrons
Number of Neutrons = Mass Number - Number of Protons
The number of protons of an element is equal to the number of electrons that it has, hence the number of electrons may vary depending if the element is introduced to a positive or negative charge. In the case of the given statement, no charges were introduced, therefore the number of electrons is equal to the number of protons.
Final answer: Number of electrons = 55