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because oxygen needs 2 electron to complete it's valance shell. Whereas hydrogen does not want to complete it's valance shell, it wants to lose its electron.

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What is more polar a carbon hydrogen bond or a carbon oxygen bond?

A carbon-oxygen bond is more polar than a carbon-hydrogen bond, because the difference in electronegativity between carbon and oxygen is greater than the difference in electronegativity between carbon and hydrogen.


Why is the bond between hydrogen and oxygen in a water molecule is more polar than the bond between hydrogen and nitrogen in a ammonia molecule?

Oxygen has a higher electronegativity than nitrogen does, so when sharing electrons with hydrogen, the sharing is more uneven in the case of oxygen than it is with nitrogen. Oxygen, in other words, will attract electrons more strongly than nitrogen does and therefore will wind up with a more negative charge (hydrogen, which supplies the extra electrons to the oxygen, has a correspondingly higher positive charge).


Is calcium more electronegative than oxygen?

No, oxygen is more electronegative than calcium. Oxygen has a higher electronegativity value on the Pauling scale compared to calcium, indicating it has a stronger tendency to attract electrons in a chemical bond.


If oxygen which has an electronegativity of 3.5 bonds with hydrogen which has an electronegativity of 2.1 the bond between the two atoms will be classified as a polar blank bond?

The bond between oxygen and hydrogen would be classified as a polar covalent bond due to the difference in electronegativity between the two atoms. Oxygen is more electronegative than hydrogen, leading to an uneven sharing of electrons in the bond.


Why dont hydrogen and oxygen atoms share electrons equally in a water molecule?

Because the electronegativity of oxygen is about 3.5 and the electronegativity of hydrogen is about 2.5. So, the electrons shared in this polar covalent bond spend more time in the orbitals around oxygen that the orbitals around hydrogen giving the molecule slightly negative and positive ends.

Related Questions

What is more polar a carbon hydrogen bond or a carbon oxygen bond?

A carbon-oxygen bond is more polar than a carbon-hydrogen bond, because the difference in electronegativity between carbon and oxygen is greater than the difference in electronegativity between carbon and hydrogen.


Does hydrogen have more electronegavtive than exygen?

Hydrogen's electronegativity is only about 2.1 while oxygen has 3.0, so no.


What property of oxygen makes it share electrons unequally with hydrogen atoms?

The high electronegativity of oxygen makes it attract electrons more strongly than hydrogen. This unequal sharing of electrons creates a polar covalent bond due to the partial negative charge on oxygen and partial positive charge on hydrogen.


Which element in H20 is more electronegative?

Oxygen is more electronegative than hydrogen in H2O. Oxygen has a stronger pull on electrons due to its higher electronegativity, causing it to attract the shared electrons more strongly in the water molecule.


Does magnesium have a higher electronegativity than calcium?

No, calcium has a higher electronegativity than magnesium. Electronegativity is a measure of an atom's ability to attract and hold onto electrons in a chemical bond, and calcium (Ca) has a higher electronegativity value than magnesium (Mg) on the periodic table.


Why is the bond between hydrogen and oxygen in a water molecule is more polar than the bond between hydrogen and nitrogen in a ammonia molecule?

Oxygen has a higher electronegativity than nitrogen does, so when sharing electrons with hydrogen, the sharing is more uneven in the case of oxygen than it is with nitrogen. Oxygen, in other words, will attract electrons more strongly than nitrogen does and therefore will wind up with a more negative charge (hydrogen, which supplies the extra electrons to the oxygen, has a correspondingly higher positive charge).


Is calcium more electronegative than oxygen?

No, oxygen is more electronegative than calcium. Oxygen has a higher electronegativity value on the Pauling scale compared to calcium, indicating it has a stronger tendency to attract electrons in a chemical bond.


If oxygen which has an electronegativity of 3.5 bonds with hydrogen which has an electronegativity of 2.1 the bond between the two atoms will be classified as a polar blank bond?

The bond between oxygen and hydrogen would be classified as a polar covalent bond due to the difference in electronegativity between the two atoms. Oxygen is more electronegative than hydrogen, leading to an uneven sharing of electrons in the bond.


Which is more polar h2s or h2o?

H2O (water) is more polar than H2S (hydrogen sulfide) because oxygen is more electronegative than sulfur. This results in a greater difference in electronegativity between the hydrogen and oxygen atoms in water, leading to a more polar molecule.


Why dont hydrogen and oxygen atoms share electrons equally in a water molecule?

Because the electronegativity of oxygen is about 3.5 and the electronegativity of hydrogen is about 2.5. So, the electrons shared in this polar covalent bond spend more time in the orbitals around oxygen that the orbitals around hydrogen giving the molecule slightly negative and positive ends.


Why H2O is more polar than H2S?

H2O is more polar than H2S because oxygen is more electronegative than sulfur, resulting in a greater difference in electronegativity between the hydrogen and oxygen atoms in H2O compared to H2S. This difference creates a stronger dipole moment in H2O, making it more polar overall.


Is Water non polar?

Water is polar molecule since oxygen has a higher electronegativity than hydrogen.