How Many Protons And Neutrons Does Boron -11 Have?

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amber Jhon Profile
amber Jhon answered
Boron is the 5th element of the periodic table and it's atomic number is 5. As, the number of protons and electrons are equal in a neutral atom, therefore, number of electrons and number of protons in boron is 5. Moreover, in Boron-11 the number of neutrons is 6.
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Dave Cowles
Dave Cowles commented
11 is the Atomic mass which is the # of protons plus neutrons. From the periodic table you see Boron has 5 electrons ie. It must have 5 protons. So the math is 11-5 = 6 neutrons.

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