While looking at calcium (Ca) on the periodic table, a student needs to find an element with a greater atomic mass in the same period. Where should the student look? directly up directly down directly to the left directly to the right

To find an element with a greater atomic number, The student should look ;     Directly to the right ( D )

The atomic number of an element in the periodic table increases across the period ( i.e. when you move from left to right ) while the atomic radius of an element increases as you go down in a group in the periodic table.

Therefore if you want to find an element in the same period that posses a higher atomic number you should move from left to the right of a period in the periodic table.

Hence we can conclude that the to find an element with a greater atomic number the student should look directly to the right.

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directly to the right

Explanation:

Atomic size increases from left to right

sodium (na), for example, has one electron in its valence shell. this is an unstable state because that valence shell needs eight electrons to be full. in order to fill its valence shell, find a way to add seven electrons to its valence shell

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