Question

1. what is the lewis dot structure for strontium?

options (lewis dot structures for sr with different electron dot arrangements)

Explanation:

Strontium (Sr) is an alkaline earth metal in Group 2 of the periodic table. Atoms in Group 2 have 2 valence electrons. A Lewis dot structure represents the valence electrons as dots around the element symbol. So, strontium should have 2 valence electrons (dots) around its symbol. Looking at the options, the first option (• Sr •) shows 2 valence electrons (one on each side, though the placement can vary as long as there are 2 for Group 2), which matches the number of valence electrons for Sr. The other options have more than 2 dots, which would be incorrect for a Group 2 element.

Answer:

A. • Sr • (assuming the first option is labeled A; if not, the option with two dots, one on each side of Sr)