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Chapter 7: PerTable
Question | Answer |
---|---|
Horizontal Rows on the periodic table are called... | Periods |
An example of a chemical property of a substance is its:a. melting point.b. specific heat.c. reaction rate.d. density. | c reaction rate |
Horizontal rows on the periodic table are called:a. periods.b. groups.c. columns.d. boxes. | a periods |
All of the following are characteristics of metals EXCEPT:a. shiny.b. good conductors.c. ductile.d. brittle. | d brittle |
Characteristics of non-metals include all of the following EXCEPT:a. ductile.b. brittle.c. poor conductors.d. dull. | a ductile |
The location of metals on the periodic table is on the:a. from the middle to the left side of the table.b. on the top part of table.c. from the middle to the right side of the table.d. bottom part of the table. | a from the middle to the left side |
Most non-metals on the periodic table are located on the:a. left side of the table.b. bottom part of the table.c. right side of the table.d. top part of the table. | c right side of the table |
An atomic mass unit is the approximate mass of a single:a. electron.b. proton.c. carbon atom.d. carbon molecule. | b proton |
As the atomic numbers of elements increase, their atomic weights:a. increase.b. decrease.c. remain the same.d. are unrelated to a change in their atomic numbers. | a increases |
Steel can be described as all of the following EXCEPT a(n):a. mixture.b. conductor.c. alloy.d. element. | c alloy |
Of the following elements, the one most essential to life on Earth is:a. oxygen.b. iron.c. carbon.d. silicon. | c carbon |
Elements used to make semiconductors for computers include germanium and:a. oxygen.b. iron.c. carbon.d. silicon. | d silicon |
The most abundant element in Earth’s crust is:a. oxygen.b. silicon.c. carbon.d. nitrogen. | a oxygen |
The element that is shiny in appearance, quite dense and liquid at room temperature is:a. silver.b. aluminum.c. mercury.d. zinc. | a silver |
When the outermost energy level of an atom is filled, at room temperature, the resulting element:a. is often quite dense.b. does not interact strongly with other atoms.c. occurs as a gas.d. generally occurs as a solid. | a is often quite dense |
Most elements with high melting points have:a. filled energy levels.b. half-filled energy levels.c. empty energy levels.d. no other common characteristics. | b half filled energy levels |
An example of a metalloid, elements with properties between metals and non-metals, isa. iron.b. silicon.c. oxygen.d. copper. | b silicon |
Atomic weight is approximately the same as:a. the atomic number.b. an atomic mass unit.c. the mass number.d. the element symbol. | c the mass number |
The second energy level of a single oxygen atom contains six electrons. The total number of electrons found on an oxygen atom is:a. 2b. 6c. 8d. 16 | c 8 |
The total number of electrons the first three energy levels of an atom can hold is:a. 2b. 6c. 10d. 18 | d 18 |
Electrons are found in the third energy level for atoms of the element:a. chlorineb. brominec. boron.d. lithium. | a chlorine |