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Aluminum has 13 energy levels. How many electrons are found in the outermost energy level for this atom? Which energy level is the outermost?

User MojoFilter
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Final answer:

The electron configuration of an aluminum atom is 1s²2s²2p63s²3p¹. Aluminum has three valence electrons in the third energy level, (3s²3p¹). The cation, Al³+, is formed when these three valence electrons are lost, leaving the configuration for the noble gas neon, 1s²2s²2p6.

Step-by-step explanation:

The electron configuration of an aluminum atom is 1s²2s²2p63s²3p¹. Aluminum has three valence electrons in the third energy level, (3s²3p¹). The cation, Al³+, is formed when these three valence electrons are lost, leaving the configuration for the noble gas neon, 1s²2s²2p6.

User Generic Person
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The electrons in the outermost electron shell are called 'valence electrons'. They have the highest energy level. This means that Aluminum would have 13 valence electrons.

Best Regards, Mike
User Vitalii Zurian
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