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Transition metals are substances of the d block that form compounds where electrons from d orbitals are ionized or otherwise accept in bonding. Typical transition metal characteristics have: the possibility of variable oxidation states; compounds with spectroscopic, structural or magnetic features resulting from partially occupied d orbitals; an extensive range of organometallic and complexes compounds including ones with very low oxidation state and useful catalytic properties displayed by solid and by metals or molecular compounds. Different transition metals show these features to different degrees, but together the properties form a sufficiently coherent pattern that the elements are best dealt with by themed Topics rather than as groups or individually.
Generally ionic bonds are stronger than covalent bonds. This is because in ionic bonds, electrostatic forces of attractin are involved. The positive ion (cation) and the negative
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Find te emprical formula for the oxide that contains 42.05 g of nitrogen and 95.95 g of oxygen
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Hookes Law simulation Using a horizontal and a vertical spring that this applet simulates Hooke's law and easy harmonic motion. As discussed previously, the amount of stretchin
1. For what fraction of annual CO 2 emissions from fossil fuel burning are automobiles responsible? 2. A 1000-kg car travels 1.6 × 10 4 km/yr. What is the ratio of the mass of
In a Bohr's model of atom when an electron jumps from n= 1 to n= 3 , how much energy will be emitted or absorbed: (1) 2.15 x10 -11 erg (2) 0.19
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