Which of the following elements behaves chemically similarly to calcium
A) magnesium
B) sodium
C) sulfur
D) chlorine
E) iron

Question

Quizplus · Accepted Answer

Magnesium is in the same group (Group 2) as calcium, which means they have the same number of valence electrons and therefore similar chemical properties. Sodium is in a different group (Group 1) and has only one valence electron, sulfur and chlorine are nonmetals and therefore have very different properties from calcium, and iron is a transition metal and also has different properties.

Which of the Following Elements Behaves Chemically Similarly to Calcium