Question

which of the following elements are most likely similar in physical and chemical properties: magnesium (mg), barium (ba), phosphorus (p), and gold (au)? o au and p o ba and au o mg and au o mg and ba

Explanation:

Step1: Recall periodic - table trends

Elements in the same group of the periodic table have similar physical and chemical properties.

Step2: Identify group of elements

Magnesium (Mg) is in Group 2 (alkaline - earth metals), barium (Ba) is also in Group 2, phosphorus (P) is in Group 15, and gold (Au) is in Group 11.

Answer:

D. Mg and Ba