Question

The element phosporus 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.

Answer 1

Answer: Phosphorus has a larger atomic mass.

Explanation: As we move right in the periodic table, both atomic number and atomic mass increases.

Magnesium comes under S-block elements (Group 2) and Phosphorus comes under P-block elements (Group-15). As both of them does not lie in the same group, hence they does not have similar chemical properties.

Therefore, Phosphorus has larger atomic mass than magnesium.

Answer 2

Answer:

Answer: Phosphorus has a larger atomic mass.

Explanation: