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The covalent bonds that oxygen shares with hydrogen gives it a full outer shell of 8 electrons.
Eight. Oxygen has 6 electrons and shares two more with the hydrogen atoms in covalent bonds
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this is a strange bond that forms (for example) with CO, carbon monoxide when the octet rule cannot be satsified by ordinary means. covalent bonds require all atoms get a full orbital of electrons. they share the valence electrons to do so. Carbon has 4 valence electrons, oxygen has six. to combine them together, with carbon dioxide, it's easy to see how the carbon shares two valence electrons with each oxygen, and the oxygen shares two valence electrons back to the central carbon, both oxygen and carbon share 8 electrons with carbon being double bonded to both oxygens. with carbon monoxide, carbon shares 2 electrons in a double bond to oxygen because oxygen only needs to get 2 electrons. this leaves carbon "short" electrons. carbon has 4 valence electrons, borrows 2 back in the double bond from oxygen, but this leaves only six for carbon which is unstable. so... oxygen shares a pair of its unbonded electrons with the carbon as well, the coordinate covalent bond. usually electrons are shared by both atoms to form a bond. the C=O double bond does not make carbon stable, so the carbon octet is made possible by oxygen sharing 2 of its electrons, but both of these electrons are "oxygen" only electrons.
It has one, double bond.An Oxygen atom has an electronic configuration of (2,6) in other words, there are 2 electrons in the lowest shell, closest to the nucleus, and then 6 outer (valence) electrons. To become totally stable, the Oxygen atom must gain 2 electrons to complete it's highest energy level, so in this instance it shares 2 electrons with another Oxygen atom to make O2
Eight. Oxygen has 6 electrons and shares two more with the hydrogen atoms in covalent bonds
The covalent bonds that oxygen shares with hydrogen gives it a full outer shell of 8 electrons.
In water molecules there are 2 atoms of hydrogen of and 1 atom of oxygen present. each hydrogen atom shares 1 electron with the oxygen atom. So the total number of electrons shared with oxygen are 2,total no. of electrons shared by hydrogen is 2 and the total no. of electrons shared by each hydrogen atom is 1.
This is a molecule having a covalent bond.
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Fresh oxygen is always in atomic state ( element form) but oxygen is a highly reactive element so it quickly combines with another oxygen atom to form a molecule consisting of two oxygen atoms. Oxygen has 6 electrons in its outer most shell, so it required 2 electrons to get an octet so it shares 2 electrons with another oxygen atom and forms a double covalent bond. O = O ---- O2
Fresh oxygen is always in atomic state ( element form) but oxygen is a highly reactive element so it quickly combines with another oxygen atom to form a molecule consisting of two oxygen atoms. Oxygen has 6 electrons in its outer most shell, so it required 2 electrons to get an octet so it shares 2 electrons with another oxygen atom and forms a double covalent bond. O = O ---- O2
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