Respuesta :

dasetka
The element A. Sr, or strontium, has two valence electrons. You can find this information by locating it on the Table of Elements, where it is in Group 2.
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The Correct answer is (A) Sr element.


The explanation:


by looking at the periodic table and look at Group 2 which has elements with two valences we can see the Sr element


and its outer shell has 2 valence electrons.


so, Sr is the element that has two valence electrons.

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