ERSC181 – Final Exam Review The nucleus is composed of which two subatomic particles?Correct answer - protons and neutrons Of the top elements present on the Earth, which of the following is found is the smallest quantity— calcium, iron, or magnesium?Correct answer - magnesium These minerals readily dissolve in slightly acidic water?Correct answer - carbonates The tendency of a mineral to break along certain planes to make smooth surfaces is called what?Correct answer - cleavage A silicate tetrahedron is composed of what?Correct answer - one silicon atom and four oxygen atoms Which subatomic particle is NOT found in the nucleus?Correct answer - electron Which two elements are the scarcest in the crust?Correct answer - potassium and magnesium The periodic table provides a lot of information. Which of the following is NOT provided by the periodic table?Correct answer - isotope number Which element comprises about 8% of the crust?Correct answer - aluminum The elements on periodic table are arranged is a specific way. How are they arranged?Correct answer - by atomic number Which type of bond involves the transfer of electrons?Correct answer - ionic Why is color not always reliable when identifying minerals?Correct answer - because the same mineral can be different colors
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