which lewis dot diagram shows an atom that needs 2 more electrons in its outermost shell?\no a\no b\no c\no…

which lewis dot diagram shows an atom that needs 2 more electrons in its outermost shell?\no a\no b\no c\no d\nh •\nhydrogen\na\n• c •\ncarbon\nb\n: o :\noxygen\nc\n: f :\nflourine\nd

which lewis dot diagram shows an atom that needs 2 more electrons in its outermost shell?\no a\no b\no c\no d\nh •\nhydrogen\na\n• c •\ncarbon\nb\n: o :\noxygen\nc\n: f :\nflourine\nd

Answer

Brief Explanations:

The number of valence electrons in an atom can be determined from its Lewis - dot diagram. Hydrogen (A) has 1 valence electron and needs 1 more. Carbon (B) has 4 valence electrons and needs 4 more. Oxygen (C) has 6 valence electrons and needs 2 more to complete its octet. Fluorine (D) has 7 valence electrons and needs 1 more.

Answer:

C. oxygen