Electron configuration packet answer key

ELECTRON CONFIGURATION PACKET ANSWER KEY HOW TO

Hence, 2 electrons can be in the same electron orbital because they spin in opposite directions and attract each other. But, itвЂ™s just a simple law of physics that the opposite happens when charges spin in opposite directions. Normally, electrons would repel each other because they are negatively charged. The idea is that 2 electrons can be in the same area (an electron orbital) because they spin in opposite directions.

You could also call it the 1s electron orbital. So, we put the two arrows in the first box called the 1s orbital. There can be up to 2 electrons in any box (representing the electron orbitals). The idea is to draw an arrow for each electron, so in this case we have two arrows to draw. In the example orbital diagram below it is clear that the electrons in the 3p sub-level have been placed as spread-out as possible according to HundвЂ™s Rule.Helium is element 2 with 2 electrons when itвЂ™s neutral. The letter gives the type of sub-level and the small numbers represent how many electrons are in that orbital or set of orbitals.

The first number gives the energy levelвЂ™s number. Each orbital is shown in the list as a number and a letter followed by a number which is smaller and above the rest. The written-out electron configuration for the ground state of an atom looks like this: 1s 22s 22p 63s 23p 4 for the element sulfur ( S), which is number 16 in the periodic table and has 16 electrons. Instead of having two electrons in the first orbital and one electron in another orbital HundвЂ™s Rule requires that all three electrons be placed in separate orbitals and all with either up or down spin. For example, nitrogen has three electrons to place in the 2p orbitals. Third is HundвЂ™s Rule which requires that electrons in a diagram must be added in so that all orbitals in a sub-level have one electron (and all with the same spin) before any other electrons are placed in the same sub-level. The second rule is the Pauli Exclusion Principle which says that two electrons in the same orbital have to have opposite spins and that only two electrons can be found in any single orbital. Also, it requires that within a level the s-sub-level must be filled before any electrons enter the p-orbitals. First is the Aufbau Principle which requires that electrons fill lower levels completely before any electrons enter a higher level. When filling an orbital diagram or writing a ground state electron configuration there are three rules to keep in mind. This is shown in diagrams with arrows that point up or down. They do not literally spin on an axis like the planet Earth but they do have a tiny magnetic field that would exist if an electrically charge particle were spinning. Electrons have a characteristic called spin and they can either be spin-up (counter-clockwise) or spin-down (clockwise). Within an energy level all p-orbitals are at the same potential energy. A p-sub-level has three orbitals which can hold a total of 6 electrons, or two each. An s-sub-level can hold two electrons in one orbital and is slightly lower in energy than the p-orbitals in the same level. In this activity there were two types of sub-level: s- and p. Each level has a number (1, 2, 3,вЂ¦) and each higher number is at higher potential energy than the last. Within each level there can be sub-levels that also differ in the amount of potential energy an electron has when in those levels. These orbitals are organized into levels with different amounts of potential energy.

ELECTRON CONFIGURATION PACKET ANSWER KEY HOW TO

We also learned how to write the ground state electron configuration for the same elements.Д®lectrons occupy orbitals, or regions of space where they are most likely to be found. In this activity we learned how to draw the ground state orbital diagram for the first 18 elements. Your changes list should be typed and handed in to earn credit for this assignment. If you notice something that this summary leaves out then please bring it to the attention of your teacher. For homework use your comparison to write down all changes you would need to make to your summary to make it accurate and complete. Compare this summary to the one your teacher asked you to write. The following paragraphs are meant to summarize the activity you did in class.

Electron configuration packet answer key