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Most naturally ocurring elements are a mixture of different isotopes. Look up boron for more details; I didn't look it up, but I can imagine that it consists of a mixture of isotopes that have an Atomic Mass of 10 and 11; or perhaps some other isotopes too.
Different isotopes of an element have the same number of protons, but a different number of neutrons.
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∙ 14y ago
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∙ 15y agoEstimates range from 8.7 ppm to 10.0 ppm (parts per million).
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∙ 11y agoWiki User
∙ 9y agoBoron is a metal element. Atomic mass of it is 11.
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∙ 8y agoEvery isotope of every element has a different atomic mass. There is no reason for boron to be an exception.
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∙ 10y agois 3.37 gr per cm3
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∙ 15y ago20 %
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∙ 13y ago19.6%
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Aluminium.
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goyttret
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What is a member of the boron family and is most abundant metal in the earths crust?
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