Electronegativity can be used to predict the character of a bond between two elements. If the difference between the electronegativity of two atoms is greater than 2.0, which type of bond will be formed? An isotopic bond
A polar covalent bond
A nonpolar covalent bond
An ionic bond

The difference in the electronegativity of two atoms determines their bond type. If the electronegativity difference is more than 1.7, the bond will have an ionic character. If the electronegativity difference is between 0.4 and 1.7, the bond will have a polar covalent character.

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her next move would be to use agarose gel electrophoresis to separate the dna molecules of varying length and create a dna fingerprint.

answer; cnidarians;