[Answer] Which metal in Period 5 is very reactive and has two valence electrons in each atom?

Answer: strontium (Sr)

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Which metal in Period 5 is very reactive and has two valence electrons in each atom? Tue Dec 24 2002 · Rubidium is the first element placed in period 5. It is an alkali metal the most reactive group in the periodic table having properties and similarities with both other alkali metals and other period 5 elements. The number of valence electrons in an atom governs its bonding behavior. Therefore elements whose atoms can have the same number of valence electrons are grouped together in the periodic table of the elements.. The most reactive kind of metallic element is an alkali metal of group 1 (e.g. sodium or potassium); this is because such an atom has only a single valence electron; during the ... A block of the periodic table is a set of elements unified by the orbitals their valence electrons or vacancies lie in. The term appears to have been first used by Charles Janet. Each block is named after its characteristic orbital: s-block p-block d-block and f-block. The block names (s p d and f) are derived from the spectroscopic notation for the value of an electron' s azimuthal ... Valence electron - Wikipedia Boron group - Wikipedia Valence electron - Wikipedia Transition metal - Wikipedia Beryllium is a chemical element with the symbol Be and atomic number 4. It is a relatively rare element in the universe u...

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