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You are watching: What element has 53 protons and 74 neutrons

Each aspect has a distinct atomic number. The atomic number is identified as the variety of protons the an element has. Utilizing a regular table (unless you have all the atom numbers memorized, which would certainly be AMAZING!), I deserve to determine the Iodine has an atom number (AKA- variety of protons)...

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Each facet has a distinct atomic number. The atomic number is identified as the variety of protons the an element has. Using a periodic table (unless you have actually all the atomic numbers memorized, which would be AMAZING!), I deserve to determine that Iodine has actually an atom number (AKA- number of protons) of 53.

The atom mass meanwhile is the variety of protons to add the number of neutrons (so, essentially, that is the mass of the nucleus). Iodine has an atom mass that 126.90 amus (atomic mass units), i m sorry we will certainly round come 127. Therefore,

number of protons + variety of neutrons = 127

We already know the number of protons is 53 native the atomic number. So,

53 + number of neutrons = 127

number of neutron = 127 - 53

number of neutron = 74

Hence, Iodine has actually an atomic number of 53 and an atomic load of 127 (53 protons and also 74 neutrons)

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