Which of the atoms listed as choices could be expected to form a +2 ion in an ionic compound? Na Ba 0 AI Br Ca

Using the electronegativity values given in the references section, show for the indicated bonds which atom acquires the partial negative charge. (To answer this question you may consult the table of electronegativity values in the table below.) H 2.1 1A 2A 3A 4A 5A 6A 7A Li Be B с N 0 F 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Na Mg 8B Al Si P CI S 1.8 2.1 2.5 0.9 1.2 3B 4B 5B 6B 7B 1B 2B 1.5 3.0 K Ge As Se Br Ca Sc Ti V Cr Mn Fe Co Ni 1.0 1.3 1.5 1.6 1.6 1.5 1.8 1.8 1.8 Cu Zn Ga 1.9 .6 1.6 0.8 1.8 2.4 2.8 Rb Sr Y Zr 0.8 1.0 1.2 1.4 Nb Mo Te Ru Rh Pd 1.6 1.8 1.9 2.2 2.2 2.2 Ag Cd In Sn 1.9 1.7 Sb 1.7 1.8 1.9 2.1 Te I 2.5 TI Pb Bi Po Cs Ba La Hf 0.7 0.9 1.1 1.3 Ta W Re Os Ir Pt Au Hg 1.5 1.7 1.9 2.2 2.2 2.2 2.4 1.9 At 2.2 1.8 1.8 1.9 2.0 1.5-1.9 2.5-2.9 <1.0 1.0-1.4 2.0-2.4 3.0-4.0 If none of them bears the negative charge, choose none. (a) H3C-PH₂ (b) CH3P(H)-H Predict which indicated bond in each set is the more polar one. 8

When drawing bond line structures, which atom should NOT be labeled? oxygen O chlorine Onitrogen O boron carbon

Write the empirical formula of at least four binary ionic compounds that could be formed from the following ions: Mg2+, Pb4+, I−, S2−

Based on electronegativity difference, which contains bonds with the greatest covalent character?    BeCl2    BaCl2    NaCl   KCl

Complete the table below

Write the empirical formula of at least four binary ionic compounds that could be formed from the following ions: 2+ Ca, Pb, Br, o² 4+

Of the following elements, which has the highest electronegativity?     Carbon     Iron     Nitrogen     Barium

Write the empirical formula of at least four binary ionic compounds that could be formed from the following ions: 2+ 3+ Ca²+, Au³+, F, S²-

The electronegativity value for N is 3.0 and that for O is 3.5. Based on these values, which of the following statements is TRUE about the compound NO? O NO is an ionic compound. O None of the above statements is true. O NO is a pure covalent compound. O NO is a polar covalent compound. O There is not enough enough information to determine the nature of NO.