Electron Configuration and Valence Electrons. The electrons in an atom fill up its atomic orbitals according to the Aufbau Principle; Aufbau, in German, means building up..ach element has a number of valence electrons equal to its group number on the Periodic Table. This table illustrates a number of interesting, and complicating, features of electron configuration. Figure %: The periodicity of valence electrons. First, as electrons become higher in energy, a shift takes place.
I took the pregnancy test early at 2 & 3 weeks pregnant, and it came up negative twice. Yet I could feel something was different about my body, even though I had my cycle it fell short a few days, and was very light. Afterwards, I had breast tenderness, and dizziness.
Based on these statistics, if you. pregnant and take a pregnancy test on 7 days past ovulation you are most likely to get a False Negative test result. 76.1% of tests taken by pregnant women were negatives-thus making them false negatives.A false negative result is when a pregnancy test indicates that you are not pregnant but you actually are.ased on these statistics, if you. pregnant and take a pregnancy test on 7 days past ovulation you are most likely to get a False Negative test result. 76.1% of tests taken by pregnant women were negatives-thus making them false negatives.