Answer :
Final answer:
Valence electrons are located in the outermost occupied major energy level, with carbon having specific electron distribution.
Explanation:
Valence electrons of representative elements are located in the outermost occupied major energy level, forming shells around the nucleus. The closest shell can hold up to two electrons, with the first shell always being filled first. For example, carbon has four electrons in the first shell and two in the second shell.
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