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Select the statements below that show data staying the same when looking at the periodic table.

Question 6 options:

Atomic number from left to right within the same period

Atomic number from top to bottom within the same group

Number of energy levels from left to right within the same period

Number of energy levels from top to bottom within the same group

1 answer

To analyze the statements regarding data staying the same on the periodic table:

  1. Atomic number from left to right within the same period: This does not stay the same; it increases from left to right as you move across a period.

  2. Atomic number from top to bottom within the same group: This does not stay the same; it typically increases as you move down a group.

  3. Number of energy levels from left to right within the same period: This does not stay the same; it remains constant within a period (the energy levels are determined by the period number).

  4. Number of energy levels from top to bottom within the same group: This does not stay the same; it increases as you move down a group.

Based on this analysis, none of the statements provided accurately depict data staying the same when looking at the periodic table. However, the statement about the number of energy levels from left to right within the same period indicates that it remains constant across a period, while the number of energy levels does change as you move down a group. Therefore, this particular option can be considered a correct choice regarding what's consistent within a period.