GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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1s2 2s2 2p6 3s2 3p1
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1s2 2s2 2p6 3s2 4p1
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1s2 2s2 2p6 3s2 3p3
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None of the above
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Detailed explanation-1: -The p orbital can hold up to six electrons. We’ll put six in the 2p orbital and then put the next two electrons in the 3s. Since the 3s if now full we’ll move to the 3p where we’ll place the remaining electron. Therefore the Aluminium electron configuration will be 1s22s22p63s23p1.
Detailed explanation-2: -The atomic number of Al is 13, and it contains 13 electrons which are: arranged as follows: 1s2 2s2 2p6 3s2 3p1.
Detailed explanation-3: -The electron configuration for Aluminum is 1s22s22p63s23p1.
Detailed explanation-4: -Therefore, silicon (14Si) is the element with an electronic configuration of 1s22s22p63s23p2.
Detailed explanation-5: -The element with electron configuration 1s2 2s2 2p6 3s2 3p1 is Al as its total electron is 13. Al is a metal of group 13. It is a good conductor of heat and electricity. It resides in period 3 of the modern periodic table.