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Both Br and Br and H and H form non-polar covalent bonds.
sulfur and oxygen.
Yes, the molecule does not contain polar bonds on the Aluminum and there are no lone pairs. The elements attached to the Aluminum have the same electronegativity.
Polar covaent bonds are formed when there is a difference in electronegativity between the atoms. Elements such as hlogens, (F, Cl, Br, I) oxygen, nitrogen are quite electronegative, elements which are less electronegative that form covalent bonds include some metals, phosphorus, hydrogen, carbon -- check out the electronegativity table.
i think u mean Ionic bonds. and a cation and anion make ionic bonds. Cations are positive and usually metal (with the exception of mercury and hydrogen). and anions have a negative charge and is usually a nonmetal.
Both Br and Br and H and H form non-polar covalent bonds.
C and N
sulfur and oxygen.
Six electrons, 3 pairs of electrons.
Three bonds and no lone pairs.
Yes, the molecule does not contain polar bonds on the Aluminum and there are no lone pairs. The elements attached to the Aluminum have the same electronegativity.
two bonds and eight lone pairs
adenine bonds to thymine cytosine bonds to guanine. (In RNA adenine bonds to uracil)
Covalent bonds, (single, double, triple)
Polar covaent bonds are formed when there is a difference in electronegativity between the atoms. Elements such as hlogens, (F, Cl, Br, I) oxygen, nitrogen are quite electronegative, elements which are less electronegative that form covalent bonds include some metals, phosphorus, hydrogen, carbon -- check out the electronegativity table.
i think u mean Ionic bonds. and a cation and anion make ionic bonds. Cations are positive and usually metal (with the exception of mercury and hydrogen). and anions have a negative charge and is usually a nonmetal.
A-T base pairs have 2 hydrogen bonds and G-C base pairs have 3 hydrogen bonds. Therefore, A-T base pairs are weaker than G-C base pairs.