GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The atomic number of carbon is 6. How many unpaired electrons are in its outer shell?
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2
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4
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5
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6
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Explanation:
Detailed explanation-1: -This is because it has six protons and six electrons in its atom. The electronic configuration of carbon is 2, 4. Hence, it has four electrons in its outermost shell.
Detailed explanation-2: -Answer and Explanation: If an atom has 6 electrons in its outer shell, it will have two unpaired electrons.
Detailed explanation-3: -According to this theory, when the carbon atom is in an excited state, one of the two electrons located in the 2s orbital will get promoted to the empty 2pz orbital. As a result, carbon now has 4 unpaired valence electrons with which it can form four bonds.
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