EBK WHAT IS LIFE? A GUIDE TO BIOLOGY WI
4th Edition
ISBN: 8220106821152
Author: PHELAN
Publisher: YUZU
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Chapter 2, Problem 2SA
Summary Introduction
To review:
Why atoms with a complete outer shell are unlikely to form bonds.
Introduction:
An atom is most stable when its outermost shell is filled.
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The “octet rule” in chemistry helps predict the types of bonds thatatoms will form. In general, an atom will be most stable if it fills itsouter shell of 8 electrons. Atoms with fewer than 4 valence electronstend to donate electrons and those with more than 4 valence electronstend to accept additional electrons; those with exactly 4 can do both.Using this rule, determine what category each of the followingelements falls into: N, S, C, P, O, H, Ca, Fe, and Mg. (You will needto work out the valence of the atoms.)
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