In stimulate to resolve this problem, we need to recognize how plenty of electrons Boron has.
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Remember that the variety of protons because that an facet is equal to its variety of electrons. So, using the atomic variety of Boron, i m sorry is same to its number of protons, we can determine the Boron has 5 electrons.
Now, in the Bohr design of one atom, the very first shell/level the electrons have the right to only organize 2 electrons. The second shell/level can hold approximately 8 electrons. However, us only have 3 electrons left. Thus, there are 3 electron in the outermost covering of the Bohr version of a Boron atom.
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