Final answer:
The student should look to the right on the periodic table for an element with a greater atomic mass in the same period as calcium (Ca).
Step-by-step explanation:
When looking for an element with a greater atomic mass in the same period as calcium (Ca) on the periodic table, the student should look to the right. The atomic mass generally increases from left to right across a period. This is because as you move across the period, the number of protons and electrons in each atom increases, resulting in a greater atomic mass.
Learn more about Atomic mass on the periodic table