Which of the following species has the 'largest' radius: Ti2+, v3+, Ca+2, Br, Cl- H Не 100 1002 heme 10 Li Be B N F Ne 12:001 1500 20 odim 11 12 13 14 15 16 17 18 Na Mg AI Si ci Ar 2130 3200 roe 24 25 kytn 36 19 20 21 22 23 26 27 28 29 30 31 32 33 34 35 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 50 S1 52 53 54 Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te Xe cas 55 Sartan 56 57-70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 Cs Ba Lu Hf Ta w Re Os Ir Pt Au Hg TI Pb Bi Po At Rn 87 88-102 103 104 105 106 107 108 109 110 111 112 114 18 Fr Ra ** Lr Rf Db Sg Bh Hs Mt UunUuu Uub Uuq 57 59 61 65 67 70 *Lanthanide series Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb La ** Actinide series Ac 90 91 92 93 97 98 100 101 102 Th Pa Np Pu Am Cm Bk Cf Es Fm Md No Select one: Oa. Br Ob. Oc. Ca+2 Od. Ti2+ O e. V3+
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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