So on the first energy level, we have 1s2, because it has at least as many electrons as helium. Okay, so we know oxygen has 8 electrons, and only two electrons can exist in each orbital. This means thatĪnd if you were to go a step farther with helium, you would get 1s2, because it has two electrons in that s orbital. Hydrogen has an electron configuration of 1s1.
Their electron configuration is determined by the number of electrons their neutral form has and the orbitals in which those electrons exist. The numbers that you are talking about are called electron configurations, and each element has its own unique one. And I really don't know much about f orbitals (I've never had one that large) but I believe there can be seven d orbitals are a really complicated shape and there can be up to five. p orbitals are kind of dumbbell shaped and there can be up to three of them at each energy level. s orbitals are sphere shaped, and there can only be one at each energy level. Okay, now, there are different types of orbitals that each take different shapes. Finally, each orbital can hold only two electrons and no more. The farther out the orbital from the nucleus, the more energy the electron has. Each orbital also represents a different energy level. For example, if the orbital is in the shape of a sphere, the electron can exist in any point within that sphere, but it cannot go outside that sphere. An orbital is basically a given space that an electron can exist in. You may already know some of this stuff but I'll go over all of it anyway.īasically, every atom has orbitals around their nucleus.
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