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(20 14? Titanium and its compounds are widely used in aircraft, rockets, satellites, ships, medical and petrochemical industries.
The atomic number of (1)Ti is 22, and the formula of its extranuclear electron arrangement is: 1s 22 p 63s 23 p 63d 44s 2, so the answer is:1S22p63s23p63d44S2;

(2) TiCl _ 4 has a low melting point, so it can be judged that its solid state is molecular crystal, so the answer is: molecule;

(3) The valence electron number of C atom in CO32-is 4+22=3, that is, three hybrid orbitals are formed, and the hybrid type is sp2;; CO32- has an atomic number of 4 and a valence electron number of 24, so NO3- and SiO 2- are isoelectrons.

So the answer is: sp2;; NO3-、SiO 32-;

(4)Ba is located in the center of the body, the number is 1, Ti is located at the vertex, the number is 8× 18= 1, O is located at the edge center, and the chemical formula is BaTiO3, so the answer is: Batio3;

(5) 1molTi, 1molCl and 5molH2O form 6molσ bond, 5molH2O contains 5x2 = 10mol σ bond, while external 1molH2O contains 2molσ bond, and * * contains 6+10+2 =.