AP Biology Chapter 2
What results from an unequal sharing of electrons between atoms?
A polar covalent bond
Which of the following explains most specifically the attraction of water molecules to one another?
Hydrogen bond
Two atoms appear to have the same mass number. These atoms...
must have the same number of protons and neutrons
We can represent atoms by listing the number of protons, neutrons, and electrons- for example, 2p+;2n 0;2e- for helium. What is the 18O isotope of oxygen?
8p+;10n 0;8e-