Which of the elements listed below would most likely form a nonpolar bond bonded

Question

Which of the elements listed below would most likely form a nonpolar bond bonded to oxygen? Rb Br C O H Of the choices below, which one is not an ionic compound? PbCl_2 MoCl_6 RbCl NaCl PCl_5 Of the bonds C-N, C = N, and C = N, the C-N bond is weakest/shortest intermediate in both strength and length strongest/longest weakest/longest strongest/shortest Of the following elements, which has the smallest ionization energy? Al Mg Ca Ga Cs Which of the following is an isoelectronic series? B^5-, Si^4-, As^3-, Te^2- Si^2-, P^2-, S^2-, Cl^2- S, Cl, Ar, K. F^-, Cl^-, Br^-, I^- O^2-, F^-, Ne, Na^+

Explanation / Answer

1) the non polar covalent bond is formed between elements of same electronegativity

So here oxygen will form non polar covalent bond with other oxygen atom

Example :O2

2) the ionic compound is formed between a metal and a nonmetal

So answer will be PCl5

3) single bond is longest as compared to double and triple bonds

it is weakest as compard to multiple bonds

So answer is weakest / longest

4) the smallest ionization energy is of element which can easily ionize to form a stable ion (with stable electronic configuration).

so here Cesium will have lowest ionization energy as its size is large and can give outemost electron easily

5) isoelectronic series elements have same number of electrons

so answer is

O2- : 10 electrons

F- : 10 electrons

Ne: 10 electrons

Na+ : 10 electrons

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