Shell diagrams are not literal diagrams of what atoms look like. Instead, they p

Question

Shell diagrams are not literal diagrams of what atoms look like. Instead, they provide a way to visualize the relative energies of electrons in the atom, which allows you to predict how atoms will react with one another Aluminum has 13 electrons. Which one of the following shell diagrams correctly represents aluminum? For the following questions, enter your answers numerically in the spaces provided The number of shells represented in the correct diagram for aluminum is The number of electrons found in the correct diagram's highest energy shell is Ions are charged atoms. Ions are wriltten as the chemical symbol of the element with a superscript of either a plus (+) or a minus (-) sign-indicating a positive or negative charge-and the number of electrons the ion has either gained or lost (if it has gained or lost more than one). For example, if an atom of hydrogen loses its one electron, then the symbol for the ion of hydrogen that forms is Ht. Since the hydrogen atom has lost only one electron, no number is listed in the superscript. By contrast, if an atom of selenium gains two electrons, then the symbol for the ion of selenium that forms is Se2- Sulfur has 16 electrons. If an atom of sulfur gains 2 electrons, the ion it becomes wil have a charge of symbol for this ion of sulfur is The The atoms of some elements are more likely to gain electrons, and the atoms of other elements are more likely to lose electrons. The electronegativity of an atom refers to its ability to gain electrons. Electronegativity is not the same as the charge of an ion; rather, the number of electrons in the outermost shell of an atom determines its electronegativity. If there are only a few electrons in the outermost shell, the atom is more likely to lose those electrons, becoming a positive ion. Atoms that are more likely to lose electrons in this way are considered weakly electronegative, If there are many electrons in the outermost shell with only one or two free spaces, then the atom is more likely to fill those spaces with extra electrons, creating a negative ion. Atoms that are more likely to gain electrons in this way are considered highly electronegative Sodium has 1 electron in its outermost shell, which means that the number of vacancy spots left in the outermost shell is An uncharged atom of sodium is more likely to electrons, which means that sodium is

Explanation / Answer

ANS.1)second shell diagram represents correctly aluminium.

2)there are total three shells in aluminum.

3)outer shell has highest energy.

4)when two electrons are gained by the neutral sulfur atom the charge of -2 and the symbol for this is anion.(S^-2)

5)sodium has 1 electron in its outermost shell,which means that the number of vacancy spots left in the outermost shell is 7.an uncharged atom of sodium is more likely to 11 electrons,which means that sodium is 0.93 electronegative

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