How many valence electrons are in the compound Dinitrogen trioxide? 26 e 28 e 11

Question

How many valence electrons are in the compound Dinitrogen trioxide? 26 e 28 e 11 e 16 e Which pair of atoms is most likely to form an ionic compound? cesium and iodine chlorine and oxygen carbon and chlorine copper and tin Which of the following statements is incorrect regarding covalent bonds? the octet rule Is observed by sharing electrons There can be a partial positive or negative charge over an atom due to electro negativity an atom can form as many bonds as it needs electrons to form an octet

Explanation / Answer

30) N2O3

1N = 5 valency electrons

1 O = 6 valency electrons

total valency electrons = 2(5) + 3 (6) = 10 + 18 = 28

total valency electrons = 28

same number of valency electrons as it simple elements

answer = option b = 28 e-

31) most electro positive and electronegetive elements forms ionic bonds.

answer = option a = cesium and iodine

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