Which of the following species is diamagnetic (not paramagnetic): Li, V, Ni, Zn, Fe2+ hon H. Не 10006 berm here 10 Li Be B CN F Ne 5000 maes 12 age 18 11 13 14 15 16 17 Na Mg AI Si P cI Ar pots 19 20 21 22 23 24 25 27 31 32 33 34 35 36 K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr 37 38 39 40 41 42 43 44 45 46 47 48 49 51 52 53 54 Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te Xe ad 82 asta 85 de 86 56 57-70 71 72 73 14 75 76 77 78 79 81 83 84 Cs Ba Lu Hf Ta W Re Os Ir Pt Au Hg TI Pb Bi Po At Rn n 87 8-102 103 104 105 106 107 100 109 110 111 112 114 Fr Ra ** Lr Rf Db Sg Bh Hs Mt Uun Uuu Uub Uuq *Lanthanide series La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb ** Actinide series 90 91 92 93 $4 95 97 98 100 101 102 Ac Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Select one: O a. V Ob. Fe2+ O. Zn o d. Li o e. Ni
Formal Charges
Formal charges have an important role in organic chemistry since this concept helps us to know whether an atom in a molecule is neutral/bears a positive or negative charge. Even if some molecules are neutral, the atoms within that molecule need not be neutral atoms.
Polarity Of Water
In simple chemical terms, polarity refers to the separation of charges in a chemical species leading into formation of two polar ends which are positively charged end and negatively charged end. Polarity in any molecule occurs due to the differences in the electronegativities of the bonded atoms. Water, as we all know has two hydrogen atoms bonded to an oxygen atom. As oxygen is more electronegative than hydrogen thus, there exists polarity in the bonds which is why water is known as a polar solvent.
Valence Bond Theory Vbt
Valence bond theory (VBT) in simple terms explains how individual atomic orbitals with an unpaired electron each, come close to each other and overlap to form a molecular orbital giving a covalent bond. It gives a quantum mechanical approach to the formation of covalent bonds with the help of wavefunctions using attractive and repulsive energies when two atoms are brought from infinity to their internuclear distance.
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