Using the following electron configuration, underline twice the highest energy level, encircle the electron/s at the highest energy.
1.13AI = 152 2s2 2p 3s 3p1
Total number of electrons in the highest energy level: 13
2. 26Fe = 152 2s 2p 3s 3p64s23d6
Total number of electrons in the highest energy level: 26
3.63EU = 1s 2s 2p 3s 3p6452 3d10 4p6 582 4d10 5p 6s2 477
Total number of electrons in the highest energy level: 63
4. 531 = 152 2s 2p 3s 3p6 482 3010 4p65s2 4d10 5p5
Total number of electrons in the highest energy level: 53
1.13AI = 152 2s2 2p 3s 3p1
Total number of electrons in the highest energy level: 13
2. 26Fe = 152 2s 2p 3s 3p64s23d6
Total number of electrons in the highest energy level: 26
3.63EU = 1s 2s 2p 3s 3p6452 3d10 4p6 582 4d10 5p 6s2 477
Total number of electrons in the highest energy level: 63
4. 531 = 152 2s 2p 3s 3p6 482 3010 4p65s2 4d10 5p5
Total number of electrons in the highest energy level: 53
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