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Published byAntony Stevens Modified over 9 years ago
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The horizontal rows of the periodic table are called PERIODS.
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The vertical columns of the periodic table are called GROUPS, or FAMILIES. The elements in any group of the periodic table have similar physical and chemical properties!
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Periodic Law When elements are arranged in order of increasing atomic number, there is a periodic pattern in their physical and chemical properties.
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Alkali Metals
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Alkaline Earth Metals
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Transition Metals
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InnerTransition Metals These elements are also called the rare-earth elements.
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Halogens
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Noble Gases
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The s and p block elements are called REPRESENTATIVE ELEMENTS.
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The periodic table is the most important tool in the chemist’s toolbox!
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Atomic size (radius), Ionic size (radius), Ionization energy, Electronegativity m.p. and b.p. You must know the following periodic trends and the reasons behind them:
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