Problem 1
Using the geologic definition of mineral as your guide, determine which of the items on the list are minerals and which are not. If not a mineral, explain. a. gold nugget b. sea water c. quartz d. cubic zirconia e. obsidian f. ruby g. glacial ice h. amber
Problem 2
If the number of protons in a neutral atom is 92 and its mass number is 238 : a. What is the name of that element? b. How many electrons does it have? c. How many neutrons does it have?
Problem 3
Which of the following elements is more likely to form chemical bonds: Xenon (Xe) or Sodium (Na)? Explain why.
Problem 4
The information below refers to three isotopes of the element potassium. Using this information, determine the appropriate number of protons and neutrons for each isotope. Label each isotope in the manner used in the chapter. Atomic Number \(=19\) Atomic Number \(=19\) Atomic Number \(=19\) Atomic Mass \(=39 \quad\) Atomic Mass \(=40 \quad\) Atomic Mass \(=41\)
Problem 5
Gold has a specific gravity of almost \(20 .\) A 5 -gallon bucket of water weighs 40 pounds. How much would a 5 -gallon bucket of gold weigh?
Problem 7
Each of the following statements describes a silicate mineral or mineral group. In each case, provide the appropriate name: a. the most common member of the amphibole group b. the most common nonferromagnesian member of the mica family c. the only common silicate mineral made entirely of silicon and oxygen d. a high-temperature silicate with a name that is based on its color e. a silicate mineral that is characterized by striations f. a silicate mineral that originates as a product of chemical weathering
