Campbell Biology (11th Edition)

Published by Pearson
ISBN 10: 0-13409-341-0
ISBN 13: 978-0-13409-341-3

Chapter 3 - 3.1 - Concept Check - Page 45: 1


hydrogen bonds to form between the positive partial charge of the two hydrogen atoms and the negatively charged oxygen atom of other water molecules. This causes water molecules tend to stick together, which explains the reason behind a water droplet.

Work Step by Step

Electronegativity is a measure of an atom's ability to attract a charge. It is often measured using the Pauline scale. If two atoms equally electronegative, both have the same tendency to attract the bonding pair of electrons so they would end up forming an electronegative bond and attracting equal amounts of electrons. The electronegativity of oxygen is greater than that of hydrogen, cause the electrons in its bonds with hydrogen to pull closer towards it and form polar covalent bonds.
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