SSC
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Group of elements whose ending e-configuration is s1, most reactive metals with the exception of hydrogen. Easily lose electrons.
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halogens
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alkali metals
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alkaline earth metals
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chalcogens
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Explanation:
Detailed explanation-1: -Alkali Metals – Group 1 metals on the periodic table that contain 1 valence electron and lose their valence electrons the most easily, making them the most reactive metals.
Detailed explanation-2: -Reactivity of Group 1 Elements The reactivity of alkali metals increases from the top to the bottom of the group, so lithium (Li) is the least reactive alkali metal and francium (Fr) is the most reactive. Because alkali metals are so reactive, they are found in nature only in combination with other elements.
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