2
two
In the first shell there are two electrons and in the second shell there are six electrons, but only the electrons in the second (outer) shell are valence electrons.
The first shell of an atom can hold a maximum of 2 electrons. Since sodium has an atomic number of 11, the first shell will be filled with 2 electrons, and the remaining 9 electrons will go into the second shell.
The maximum number of electrons that can occupy the outermost energy level of an atom is 8. This rule is based on the octet rule, which states that atoms tend to gain, lose, or share electrons to achieve a full outer shell of 8 electrons, making them more stable.
The first shell can hold a maximum of 2 electrons, the second shell can hold up to 8 while the third shell can also hold a maximum of 8.
Each orbital can hold a maximum of 2 electrons.
8 electrons
I assume you mean for each atom. If I remember correctly, the shells go 2, 8, then 18 on the third layer.
There are three layers to the pericardium. They go in alphabetical order. The first layer is the Fibrous Pericardium. The second layer is the parietal pericardium and the third and innermost layer is the visceral layer.
the first energy levels hold 2, 8, and 18 a total of 28 electrons
The answer is electrons. I assume you mean positrons (anti-electrons) by positive electrons, and positrons and electrons go boom when they meet, so we don't see many positrons around.
Well first, on the video you want to erase the layer on, click details. Then press save. Go back to flipnote studio, and click on veiw flipnotes. The video you saved will be there. Then go to edit on the video you saved then erase the layer.