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When very electronegative atoms like oxygen bond to atoms with lower electronegativity like hydoge What is the result?
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How is oxidation number different from valence electrons?
Valence is how many bonds an atom can form. Oxidation number can be though of as being similar to the charge on an ion, and is based on the difference in electronegativity between bonded atoms. If something is bonded to a more electronegative element, its oxidation state is positive, and if it is with a less electronegative on the state is positive. In a neutral substance the sum of the oxidation states is always zero. Valence and oxidation states are related, though.Example: In formaldehyde (CH2O) hydrogen has a valence of 1, oxygen a valence of 2, and carbon a valence of 4. Carbon is more electronegative than hydrogen, and less electronegative than oxygen. As a result, each hydrogen atom has an oxidation state of 1+ and the oxygen is in the 2- oxidation state. This puts carbon in an oxidation state of 0.
What is the differences in electronegativity would result in an ionic bond?
Generally a difference of 1.4 in electronegativity would result in an ionic bond.
Is CLF5 ionic?
No - although Fluorine is the most electronegative element, chlorine is also electronegative. The result is a trigonal bipyramidal covalent compound
Why is the covalent bond between O and H considered polar?
Oxygen has an electronegativity of 3.44 Hydrogen has an electronegativity of 2.2 So Oxygen attracts the electrons so the oxygen side of the bond is more negative as the electron are closer to it, this forms permanent dipoles as parts of the molecule are have opposing charges. And that is a polar covalent bond and non polar bond is is where you have two elements with the same EN and the electron is equidistant from them. You can have non polar molecules with polar bonds for example carbon dioxide whitch is linear in shape so the charges cancel each other out.
What happens when electrons are unequally shared in a covalent bond?
Unequal sharing results when there is significant difference in electronegativities. The more electronegative atom(s) draws bond electrons closer, leaving the less electronegative atom(s) slighty positive. The result of unequal sharing of electrons is the formation of polar bonds.
Does magnesium have a higher electronegativity than calcium?
Yes, Mg is more electronegative than Ca. By the Pauling scale Mg has an electronegativity value of 1.31 while Ca has 1.00. The higher the value, the more electronegative the element is. The electronegativity of the elements generally decrease down group II (the alkaline earth metals).
Ask us very electronegative atoms like oxygen bond to atoms with a lower electronegativity like hydrogen what's the result?
The oxygen atom becomes strongly negative, The hydrogen atom becomes partially positive
How is oxidation number different from valence electrons?
Valence is how many bonds an atom can form. Oxidation number can be though of as being similar to the charge on an ion, and is based on the difference in electronegativity between bonded atoms. If something is bonded to a more electronegative element, its oxidation state is positive, and if it is with a less electronegative on the state is positive. In a neutral substance the sum of the oxidation states is always zero. Valence and oxidation states are related, though.Example: In formaldehyde (CH2O) hydrogen has a valence of 1, oxygen a valence of 2, and carbon a valence of 4. Carbon is more electronegative than hydrogen, and less electronegative than oxygen. As a result, each hydrogen atom has an oxidation state of 1+ and the oxygen is in the 2- oxidation state. This puts carbon in an oxidation state of 0.
What is the differences in electronegativity would result in an ionic bond?
Generally a difference of 1.4 in electronegativity would result in an ionic bond.
Is CLF5 ionic?
No - although Fluorine is the most electronegative element, chlorine is also electronegative. The result is a trigonal bipyramidal covalent compound
When very electronegative atoms like oxygen bond to atoms with lower electronegativity like lithium What is the result?
The oxygen atom becomes strongly negative. The hydrogen atom becomes partially positive.
Why is the covalent bond between O and H considered polar?
Oxygen has an electronegativity of 3.44 Hydrogen has an electronegativity of 2.2 So Oxygen attracts the electrons so the oxygen side of the bond is more negative as the electron are closer to it, this forms permanent dipoles as parts of the molecule are have opposing charges. And that is a polar covalent bond and non polar bond is is where you have two elements with the same EN and the electron is equidistant from them. You can have non polar molecules with polar bonds for example carbon dioxide whitch is linear in shape so the charges cancel each other out.
Is The bond between H and O is polar covalent?
Oxygen is a highly electronegative atom while hydrogen is a lot less electronegative as compared to oxygen. Thus, the oxygen atom will attract the electrons in the covalent bond towards itself. As a result, the oxygen atom gains a slight negative charge due to the closer proximity of electrons while the hydrogen atom gains a slight positive charge because its electrons are now further away from the protons. Thus, the molecule formed will have slightly charged ends, which makes it polar.
What happens when electrons are unequally shared in a covalent bond?
Unequal sharing results when there is significant difference in electronegativities. The more electronegative atom(s) draws bond electrons closer, leaving the less electronegative atom(s) slighty positive. The result of unequal sharing of electrons is the formation of polar bonds.
Why is FCl polar but F2 is not?
A molecule is polar is a result of differences in electronegativity; that is, one atom has a stronger pull on electrons than another. Flourine (F) is more electronegative than chlorine (Cl), and so tends to pull electrons to its side of the molecule. This makes FCl polar. F2 consists of two atoms of fluorine, which are identical and thus have the same electronegativity. Therefore, the molecule is nonpolar.
What is the oxidation number of W in WO4-2?
In anions that contain oxygen along with a less electronegative element, each oxygen atoms is assigned an oxidation number of -2. Therefore, a WO4-2 anion requires the tungsten atoms to have an oxidation number of +6, to result in the specified charge of the anion.
What is the oxidation number of N in NO3?
+5. Oxygen is more electronegative than nitrogen and will exist in its most common -2 oxidation state. The three oxygen atoms in this ion therefore have a total charge of -6,requiring a formal charge on nitrogen of +5 to result in the charge -1 on the anion overall.
