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Metallic radius is half of the distance between the nuclei of two atoms when they are in crystalline structure and bond is formed between positively charged atoms, that means they are tightly packed in metallic lattice. And van der Waals radius is half of the internuclear distance of two non-bonded atoms of the same element in the closest possible distance. ...


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Ionization energy is the minimum amount of energy needed to remove most loosely bound electron (valence electron). The atomic number of Calcium is 20. So it's orbital configuration is 1s2 2s2 2p6 3s2 3p6 4s2. This is the arrangement of electrons in the shells. No free electron is present in the above configuration, all the electrons are bonded. So for ...


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Tl, dr: Upon further review the differences between beryllium, magnesium and other metals is not so clear-cut. There is less to the difference in flame colors than meets the eye. We do not have polar opposites of colored flames at one end and white flames at the other. Potassium does not introduce a strong color to the flame even though we often call the ...


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