In the periodic table, elements are represented by abbreviations in boxes such as the one shown to the right for the element boron. Compare the information given in the periodic table representation of boron (at right) to the symbol of a specific boron atom (in the Model 2 simulation). What information about atomic composition of boron is clearly represented in both
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Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture
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In the periodic table, elements are represented by abbreviations in boxes such as the one shown to t...
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