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ChemistryChemistry
1 August, 01:19

Which of the following elements has two valence electrons?

a. Sr

b. Na

c. Al

d. B

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Answers (2)
  1. 1 August, 01:46
    0
    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.
  2. 1 August, 03:09
    0
    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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