Question

the element phosphorus is located to the right of the element magnesium along the same period in the periodic table. which best describes the relationship of the elements? magnesium has a larger atomic number. phosphorus has a larger atomic mass. magnesium is in the same category as phosphorus. phosphorus has similar chemical properties as magnesium.

Explanation:

In the periodic table, atomic number increases from left - to - right in a period. Magnesium (Mg) has atomic number 12 and phosphorus (P) has atomic number 15. Atomic mass also generally increases from left to right in a period. Magnesium is a metal and phosphorus is a non - metal, so they are not in the same category and have different chemical properties.

Answer:

Phosphorus has a larger atomic mass.