Take a look at the snapshot below. Each of those colored balls is an electron. In an atom, the electrons spin roughly the center, likewise called the nucleus. The electrons favor to it is in in different shells/orbitals. Shell number one can only organize 2 electrons, covering two have the right to hold 8, and for the first eighteen elements shell three deserve to hold a best of eight electrons. As you learn about elements with an ext than eighteen electron you will find that covering three can hold much more than eight. When one shell is full, the following electron the is added has to move to the next shell.So... Because that the aspect of OXYGEN, you already know the the atomic number speak you the number of electrons. That method there are 8 electron in an oxygen atom. Looking at the picture, you can see there are two electron in covering one and also six in shell two.

You are watching: How many electrons does water have


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► more about the background and areas to find oxygen.► Next aspect of the periodic table.
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WaterThis is a water molecule. Also though friend find complicated names on other molecules, everyone calls H2O "water". Water is comprised of two hydrogen (H) atoms and also one oxygen (O) atom. The formula for water is H2O. The hydrogen atoms have actually filled orbitals through two electrons and also the oxygen atom is filled with eight electrons.

See more: How Much Is 56Kg In Pounds, Convert 56 Kilograms To Pounds


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Lithium OxideTwo lithium (Li) atoms have the right to bond through one oxygen (O) atom, making the formula Li2O. Oxygen likes to have two extr electrons to make it happy. Every lithium atom offers one. You deserve to see that the Oxygen atom has actually eight electrons (6 the its own, and also one from every lithium), and the 2 lithium atoms have actually two electron each.
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Hydrogen PeroxideTwo hydrogen (H) atoms can also bond with two oxygen (O) atoms, making the formula H2O2. That"s simply one much more oxygen 보다 water, however it is a entirely different compound. You deserve to see the each of the Oxygen atoms has actually eight electrons, and also the 2 Hydrogens have actually two electron each. See just how the electrons space shared?
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