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23. Which molecule has only covalent bonds? A. CO2 B. Al2O3 C. Mg3N2 24. The octet...

23. Which molecule has only covalent bonds? A. CO2 B. Al2O3 C. Mg3N2

24. The octet rule states that main group elements in the periodic table react to achieve a filled valence shell which consists of how many electrons? A. 2 B. 4 C. 8

25. Which of the following elements are found in the p-block and can form an octet? A. He, P, S, As B. P, S, O, C C. He, Ar, Kr, Ne

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23.CO2 is only covalent bond

Al2O3,Mg3N2 are ionic compounds

24.The element eight electrons in it's valence shell. it is more stable is called octet rule.

C.8

25. The noble gas elements contains eight electrons in its valence shell. So they are more stable He,Ne,Ar,Ke,Xe

C. He, Ar, Kr, Ne

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