BIOCHEMISTRY
ATOMIC STRUCTURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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11
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5
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6
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16
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Detailed explanation-1: -For boron-11 this total is 11, and five of the particles are protons, thus 115=6 neutrons. Was this answer helpful?
Detailed explanation-2: -Boron has an atomic number of 5 which means it has 5 protons. We assume atoms are neutral so the atom also has 5 electrons. It has an atomic mass (average mass) of 10.811 which we would round up to 11 (the mass of the most common Boron atom) so it has 11 total particles in its nucleus (protons + neutrons).
Detailed explanation-3: -The other 80% of the atoms are B-11, which is an isotope of boron with 6 neutrons and a mass of 11amu.
Detailed explanation-4: -Boron-11 atom is the stable isotope of boron with relative atomic mass 11.009306, 80.1 atom percent natural abundance and nuclear spin 3/2. A trace element with the atomic symbol B, atomic number 5, and atomic weight [10.806; 10.821].
Detailed explanation-5: -Number of neutrons = Mass number-Atomic number Number of neutrons = 23-11 = 12.