Question

Electronegativities of the elements Be, Mg, Ca, and Sr follow a specific trend within their group. Based on this trend, the atoms of which element will have the least attraction for an electron?
Be
Mg
Ca
Sr

Answer 1

Answer:

Sr

Explanation:

Electronegativity decreases down a group, therefor the one closer to the bottom will have the least attraction for an electron

Answer 2

Electronegativities of the elements Be, Mg, Ca, and Sr follow a specific trend within their group. Based on this trend, the atoms of Sr element will have the least attraction for an electron.

What is Electronegativity ?

Electronegativity is defined as the tendency of atom attract the bonded pair of electrons of covalent bond to itself. To measure the electronegativity Pauling scale is used.

What is the trend of electronegativity in group 2 elements ?

The electronegativity in group 2 elements is that the atomic number of the element increases the electronegativity of the element decreases. Be, Mg, Ca and Sr are group 2 elements.

The atomic number of Be is 4, the atomic number of Mg is 12, the atomic number of Ca is 20 and the atomic number of Sr is 38. As Sr has the highest atomic number amongst these elements. So Sr have least electronegativity.

Thus, from the above conclusion we can say that Electronegativities of the elements Be, Mg, Ca, and Sr follow a specific trend within their group. Based on this trend, the atoms of Sr element will have the least attraction for an electron.

Learn more about the Electronegativity here: brainly.com/question/2415812

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