Which of the following best describes the Lewis dot structure of methane (CH_4)?
A
Carbon atom in the center with one triple bond to one hydrogen atom and three single bonds to three hydrogen atoms.
B
Carbon atom in the center with four lone pairs and no bonds to hydrogen atoms.
C
Carbon atom in the center with four single bonds to four hydrogen atoms, and no lone pairs on carbon.
D
Carbon atom in the center with two double bonds to two hydrogen atoms, and two lone pairs on carbon.
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검증된 단계별 안내
1
Recall that a Lewis dot structure represents the valence electrons of atoms and how they are shared or paired in bonds.
Identify the valence electrons for carbon and hydrogen: carbon has 4 valence electrons, and hydrogen has 1 valence electron each.
Determine the bonding pattern: carbon typically forms four single covalent bonds to complete its octet, while hydrogen forms one single bond to fill its duet.
Draw the carbon atom in the center and connect it with four single bonds to four hydrogen atoms, ensuring no lone pairs remain on carbon.
Verify that each hydrogen has 2 electrons (a duet) and carbon has 8 electrons (an octet) around it, confirming the stability of the structure.