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Argon Isotopes: Protons, Neutrons & Electrons Breakdown
Chapter 1, Problem 24P(choose chapter or problem)
Argon has three naturally occurring isotopes, \({ }^{36} \mathrm{Ar},{ }^{38} \mathrm{Ar} \text {, }\) and \({ }^{40} \mathrm{Ar} .\) What is the mass number of each? How many protons, neutrons, and electrons are present in each?
Questions & Answers
QUESTION:
Argon has three naturally occurring isotopes, \({ }^{36} \mathrm{Ar},{ }^{38} \mathrm{Ar} \text {, }\) and \({ }^{40} \mathrm{Ar} .\) What is the mass number of each? How many protons, neutrons, and electrons are present in each?
ANSWER:
Step 1 of 3
Here we have to calculate the mass number, number of protons, neutrons and electrons present in the three naturally occurring isotopes of argon \({ }^{36} \mathrm{Ar},{ }^{38} \mathrm{Ar} \text { and }{ }^{40} \mathrm{Ar}\).
\({ }^{36} \mathrm{Ar}\)
Here mass number (A) of Ar = 36
Atomic number (Z) = number of proton (p) = number of electron (e) = 18
Number of neutron (n) = A - Z
= 36 - 18
= 18
Thus the isotope \({ }_{18}^{36} \mathrm{Ar}\) Ar has mass number 36, number of neutron, proton and electron is 18.
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Argon Isotopes: Protons, Neutrons & Electrons Breakdown
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