Respuesta :
The alkaline earth metals are also referred to as Group 2A. elements are comparable to one another in terms of their electron configurations and thus, their properties.
Alkaline-earth metals:
From beryllium (Be) through radium, the alkaline-earth metals comprise Group 2 of the periodic table (Ra). The alkaline earth metals are so reactive because each of these elements has two electrons in its lowest energy level that they are rarely encountered alone in nature. However, they don't react as quickly as alkali metals do. Compared to the alkali metals, their chemical reactions normally proceed more slowly and generate less heat.
Elements and their electronic configuration are listed below:-
Be :- [He]2S2
Mg:-[Ne]3S2
Ca :-[Ar]4S2
Sr:-[Kr]5S2
Ba:-[Xe]6S2
Ra:-[Rn]7S2
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Group 2A is another name for the alkaline earth metals, which are similar to one another in terms of their electron configurations and thus, their properties.
Alkaline Earth Metals
Group 2 of the periodic table is made up of alkaline-earth metals, starting with beryllium (Be) and ending with radium (Ra). The fact that each of these elements possesses two electrons at its lowest energy level makes the alkaline earth metals extremely reactive, which is why they are rarely found by themselves in nature. They don't respond as quickly, though, as alkali metals do. Their chemical reactions often take longer and produce less heat than those of the alkali metals.
Following is a list of elements along with their electronic configuration:-
Be:- [He]2S2
Mg:-[Ne]3S2
Ca:-[Ar]4S2
Sr:-[Kr]5S2
Ba:-[Xe]6S2
Ra:-[Rn]7S2
For further information on the periodic table, see:
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