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When two atoms are sharing electrons in a covalent bond what will happen to the electrons when one of the atoms is more electronegative than the other?
Electronegativity= the ability of an atom to attract a pair of electrons in a covalent bond
So the electrons will be drawn towards the more electronegative atom, causing this atom to become slightly negative (δ-) and the less electronegative atom to become slightly positive (δ+), so the bond is polarised.
What else can I help you with?
How do chemicals bond?
Things move.
What kinds of bonds can happen between the elements and compounds?
Elements and compounds can form ionic bonds, covalent bonds, or metallic bonds. In ionic bonds, electrons are transferred from one atom to another. Covalent bonds involve the sharing of electrons between atoms. Metallic bonds occur in metals where electrons are free to move between atoms.
Do atoms share pairs of electrons equally?
No. They reason it is polar is because one side is slightly positive and the other slightly negative. For this to happen, there needs to be unequal sharing of electrons. One atom will have a higher electronegativity than the other, and will naturally "keep" the electrons longer. So that atom will be slightly negative for having held onto the electron, creating a polar bond.
How does covalent bonding happen?
Covalent bonding happens when an atom (I'm assuming you know the basics of an atom's behaviour) wants an electon in it's shell to give it a noble gas configuration. It therefore shares the electron with another atom that has the same dilemma. They therefore bond with each other as they are sharing an electron.
What are three differences in ionic and colvalent bonds?
The most important distinction you have to make is that when thinking of covalent bonds, think shared electrons. When thinking of ionic bonds, think transfered electrons. Covalent bonds happen between a non-metal and a non-metal. Ionic bonds happen between a metal and a non-metal. Because a molecule may have different atoms with different sizes, electrons are shared unequally in a covalent bond. The different size atoms means that they have a different electronegitivity charge. So in a covalent bond, electrons will spend more time around one or more atoms than others. If a there is a covalent bond between two atoms with different electronegitivities, then the bond is also polar. Whether the entire molecule is polar is a different matter. Ionic bonds happen between a metal and a non-metal, which have very different electronegitivites. Usually in a ionic bond, the metal will have a low electronegitivity and the nonmetal a high electronegitivity. Because of the disparity in the charges, the non-metal will steal electrons rather than sharing them (hence transfer of electrons). Like with covalent bonds, unequal sharing of electrons causes polar charges. But a ionic bond is so much polar than a covalent bond because instead of unequal sharing there is uneqal transfering. The saying with ionic bonds in chemistry is: the bond is so polar that it's ionic.
What happen when the oxygen atoms share electrons?
A covalent bond is formed.
How do chemicals bond?
Things move.
What kinds of bonds can happen between the elements and compounds?
Elements and compounds can form ionic bonds, covalent bonds, or metallic bonds. In ionic bonds, electrons are transferred from one atom to another. Covalent bonds involve the sharing of electrons between atoms. Metallic bonds occur in metals where electrons are free to move between atoms.
Do atoms share pairs of electrons equally?
No. They reason it is polar is because one side is slightly positive and the other slightly negative. For this to happen, there needs to be unequal sharing of electrons. One atom will have a higher electronegativity than the other, and will naturally "keep" the electrons longer. So that atom will be slightly negative for having held onto the electron, creating a polar bond.
Elements that bond together?
Elements bond together through interactions between their electrons. This can happen through sharing electrons in covalent bonds, transferring electrons in ionic bonds, or through electrostatic attractions in metallic bonds. These bonding interactions help elements achieve a stable electron configuration.
How does covalent bonding happen?
Covalent bonding happens when an atom (I'm assuming you know the basics of an atom's behaviour) wants an electon in it's shell to give it a noble gas configuration. It therefore shares the electron with another atom that has the same dilemma. They therefore bond with each other as they are sharing an electron.
What are three differences in ionic and colvalent bonds?
The most important distinction you have to make is that when thinking of covalent bonds, think shared electrons. When thinking of ionic bonds, think transfered electrons. Covalent bonds happen between a non-metal and a non-metal. Ionic bonds happen between a metal and a non-metal. Because a molecule may have different atoms with different sizes, electrons are shared unequally in a covalent bond. The different size atoms means that they have a different electronegitivity charge. So in a covalent bond, electrons will spend more time around one or more atoms than others. If a there is a covalent bond between two atoms with different electronegitivities, then the bond is also polar. Whether the entire molecule is polar is a different matter. Ionic bonds happen between a metal and a non-metal, which have very different electronegitivites. Usually in a ionic bond, the metal will have a low electronegitivity and the nonmetal a high electronegitivity. Because of the disparity in the charges, the non-metal will steal electrons rather than sharing them (hence transfer of electrons). Like with covalent bonds, unequal sharing of electrons causes polar charges. But a ionic bond is so much polar than a covalent bond because instead of unequal sharing there is uneqal transfering. The saying with ionic bonds in chemistry is: the bond is so polar that it's ionic.
Can tetrachloromethane conduct electricity?
No because it forms covalent bonds and electrons are not free to move in covalent bonds. Therefore, electricity (the flow of electrons) cannot happen. - Ch
What two posibilities happen to valence electrons when a chemical bond is formed?
They can either be shared (covalent bond) or transferred (ionic bond)
What is the case to form chemical bond?
Chemical bonds are formed between atoms when they share or transfer electrons to achieve a more stable configuration. This can happen through processes like ionic bonding (transfer of electrons), covalent bonding (sharing of electrons), or metallic bonding (delocalization of electrons in a metal lattice). The type of bond formed depends on the electronegativity and properties of the atoms involved.
What occurs when there is an unequal sharing of electrons between atoms?
Part of the Molecule will be slightly negative and the other slightly positive. One example is water. The oxygen atom hogs the electrons leaving the oxygen slightly negative and the hydrogen slightly positive. This makes the water molecules slightly "sticky" and the water molecules clump together. If this didn't happen then water would boil at -120 deg C intead of +100 degrees.
How does atoms combine to form molecules?
They can combine in lots of ways. Some reactive elements will combine on their own but others need heating to combine. Noble gases (krypton, argon, xenon, helium, neon and radon) do not react (combine) with other atoms.
