Question

The elements found in Group 2A, from top to bottom, include beryllium, magnesium, calcium, strontium, and barium. Which of these elements has the highest electronegativity value?

beryllium

magnesium

calcium

barium

Answer 1

@sammixboo ... Will you help me, please?

Answer 2

Electronegativity is the capacity to attract an electron. The lower the number of orbitals of an element is, the greater the electronegativity, because it means its structure is very approximated to the nucleus, which is positively charged, ready to attract an electron. As we o down the group, the atomic size increases. Hence Berylium should be the answer as it is the smallest atom.

Answer 3

Thank you, @Hoslos !!!

Answer 4

My pleasure.