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Which of the following groups contain alkaline earth metals?

A. 1A
B. 2A
C. 7A
D. 3A


Sagot :

Final answer:

Alkaline earth metals are elements in Group 2, less reactive than alkali metals but still highly reactive. Examples are calcium and magnesium.


Explanation:

Alkaline earth metals are found in Group 2 of the periodic table and include beryllium, magnesium, calcium, strontium, barium, and radium. These metals are less reactive compared to alkali metals but still exhibit high reactivity due to their tendency to lose valence electrons. For example, calcium and magnesium are abundant on Earth and are widely used in various applications.


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