Take a look in ~ the picture below. Every of those colored balls is one electron. In one atom, the electron spin roughly the center, likewise called the nucleus. The electrons prefer to it is in in different shells/orbitals. Shell number one deserve to only organize 2 electrons, shell two can hold 8, and also for the very first eighteen elements shell three can hold a maximum of eight electrons. As you learn around elements with more than eighteen electron you will discover that shell three deserve to hold an ext than eight. When one covering is full, the following electron the is included has to relocate to the following shell.So... Because that the facet of OXYGEN, you already know that the atomic number tells you the variety of electrons. That means there space 8 electrons in one oxygen atom. Looking in ~ the picture, you deserve to see there room two electron in covering one and six in covering two.

You are watching: How many electrons does an oxygen atom have


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► much more about the history and places to uncover oxygen.► Next aspect of the routine table.
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WaterThis is a water molecule. Even though girlfriend find facility names on various other molecules, everyone calls H2O "water". Water is consisted of of two hydrogen (H) atoms and one oxygen (O) atom. The formula because that water is H2O. The hydrogen atoms have actually filled orbitals through two electrons and the oxygen atom is filled with eight electrons.

See more: 80 Degrees Celsius Equals What In Fahrenheit, Fahrenheit To Celsius Conversion (°F To °C)


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Lithium OxideTwo lithium (Li) atoms deserve to bond with one oxygen (O) atom, make the formula Li2O. Oxygen likes to have two additional electrons to do it happy. Each lithium atom offers one. You deserve to see the the Oxygen atom has actually eight electrons (6 of its own, and also one from every lithium), and the two lithium atoms have two electrons each.
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Hydrogen PeroxideTwo hydrogen (H) atom can likewise bond through two oxygen (O) atoms, make the formula H2O2. That"s just one much more oxygen 보다 water, but it is a entirely different compound. You can see the each the the Oxygen atoms has actually eight electrons, and also the two Hydrogens have actually two electron each. See just how the electrons room shared?
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