Neutrons have a magnetic dipole moment due to the motion of their internal charged structure (quarks). However, there is no evidence yet of an Electric dipole moment. The existence of an electric dipole would violate parity.
Theoretically, there is more to the neutron (and all hadrons) than just 3 quarks. There are also the gluons and a 'sea' of valance quarks popping in and out of existence.
Interestingly, if you sum up the masses of the up and down quarks in a neutron (2 down, 1 up) you don't get anywhere near the measured mass of the neutron itself. The gluons holding the quarks together are individually massless. However, their binding energy is what makes up the majority of the mass of the neutron (E = mc^2). A bit off topic, but it shows that there's more going on in the neutron than the simple 3 quark diagrams shown in many text books.
An attraction between the positive end of one molecule and the negative end of another
An attraction between the positive end of one molecule and the negative end of another
An attraction between the positive end of one molecule and the negative end of another
Elecronegativity is the ability of an atom to attract the electron density of a covalent bond to itself. Different atoms of elements have different electronegativities. As a result, in a covalent bond, the shared electrons are closer to the atom with the higher electronegativity or 'better pulling power' As a result, the atom with the higher electronegativity is 'slightly more negative' (delta negative dipole) and the other atom is 'slightly more positive' (delta positive dipole). As a result, a delta negative atom of one molecule will be attracted to the delta positive atom of another moleclue, and vice versa. As a result of this, the molecules are attracted to each other, forming dipole-dipole intermolecular forces. Hope this helps :)
Dipole-dipole forces are attractive forces between the positive end of one polar molecule and the negative end of another polar molecule. They are much weaker than ionic and it happens when the two molecules are close together!
Because opposite charges attract. The negative end of the dipole moment is trying to get to the positive end of the field, and the positive end of the dipole is trying to get to the negative end of the field.
An attraction between the positive end of one molecule and the negative end of another
An attraction between the positive end of one molecule and the negative end of another
An attraction between the positive end of one molecule and the negative end of another
An attraction between the positive end of one molecule and the negative end of another
An attraction between the positive end of one molecule and the negative end of another
An attraction between the positive end of one molecule and the negative end of another
An attraction between the positive end of one molecule and the negative end of another
The shape and charge distribution in a water molecule cause it to have a permanent dipole moment, which consist of a positive electric charge and a negative charge separated by a distance in space. Therefore, the part of a water molecule that corresponds to the negative charge of its dipole moment is attracted to positive ions, and the part of a water molecule that corresponds to the positive charge of its dipole moment is attracted to negative ions.
The molecular structure of water allows foræthere to be a positive and a negative region, a dual polarity, which is the very definition of dipole.
The molecular dipole moment is a measure of the separation of positive and negative charges within a molecule. It is a vector quantity that indicates the overall polarity of a molecule. It is determined by the individual dipole moments of the bonds within the molecule and their spatial arrangement.
because of certain elements being more electronegative than others, this causes positive and negative ends of the molecule. the positive ends then attract the negative ends and vice versa, and so this is Van der Walls' forces