How many nucleons does boron-11 contain?
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Answer:
Five protons and six neutrons.
Explanation:
Isotopes are given by the name of the element and the mass number. Here boron-11 means the name of the element is boron and the mass number is 11.
We are given that boron-10 had five protons in its nucleus, and any element always has the same number of protons in its nucleus (atomic number). So boron-11 has five protons the same as boron-10.
Then the mass number is total protons plus neutrons. For boron-11 this total is 11, and five of the particles are protons, thus 11 − 5 = 6 neutrons.
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Answer:
5 protons
Explanation:
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