silicon-28
Quick Summary
An isotope is a variation of a chemical element that has the same number of protons but a different number of neutrons, resulting in a different atomic mass. Silicon-28 is the most abundant naturally occurring isotope of silicon, making up 92.21% of the element. Silicon itself is the second most abundant element in Earth's crust, surpassed only by oxygen. While isotopes of an element share nearly identical chemical properties, their differing atomic masses lead to variations in physical characteristics. Silicon-28, silicon-29, and silicon-30 are the three stable isotopes of silicon.12
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