Why does one electron in a potassium atom go into the fourth energy level instead of squeezing into the third energy level along with the eight already there?

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

so what is the problem with your lab report and whats the subject of the lab report? i will you

they vary. it used to be meat, grain, bread, candy, beverages, donuts, and fruits/vegetables. now they added exercise in.