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Sagot :
Since there are only 3 valence electrons in total in aluminum, only 3 electrons are seen in the aluminum electron dot structure.
Aluminum is an element with the atomic number 13.
It has a [Ne] electrical configuration. 3s^23p3p^1s
Since there are only 3 valence electrons in total for aluminum, the electron dot structure of aluminum only displays these 3 electrons.
There are 13 electrons in an aluminum atom. We have thus shown that there are 13 protons, 14 neutrons, and 13 electrons in an aluminum atom with an atomic number of 13 and a mass number of 27.
Group 13 of the periodic table contains the chemical elements known as the boron group, which also includes the elements boron (B), aluminum (Al), gallium (Ga), indium (In), thallium (Tl), and nihonium (Nh). The boron group of elements are distinguished by having three valence electrons.
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