Elements in Period 2 of the periodic table have electrons in how many shells?
a. 1
b. 3
c. 4
d. 2
[Ques. 2] The San Andreas fault in California is thought to be a boundary of two plates
a. that are separating from one another.
b. where one is pushing over the top of the other.
c. that are sliding horizontally past one another.
d. that are basically at rest.
[Ques. 3] How many shells in an atom of silicon contain electrons?
a. 3
b. 2
c. 5
d. 4
[Ques. 4] The basic mechanism for plate movement is thought to be
a. earthquake surface waves.
b. the tidal force of the Moon.
c. convection cells in the asthenosphere.
d. earthquake body waves.
[Ques. 5] Which of the following elements has the lowest ionization energy?
a. Ar
b. Na
c. Ne
d. Li
[Ques. 6] The location on Earth's surface directly above an earthquake's focus is called
a. the shadow zone.
b. the epicenter.
c. ground zero.
d. the subduction zone.
[Ques. 7] Which of the following Period 3 atoms has the smallest radius?
a. Ar
b. Al
c. S
d. Na
[Ques. 8] The lithosphere consists of
a. all of the crust's depth.
b. all of the crust's depth and part of the mantle's depth.
c. part of the crust's depth.
d. all of the crust's depth and all of the mantle's depth.
[Ques. 9] How many valence electrons does an atom of phosphorus have?
a. 15
b. 5
c. zero
d. 3
[Ques. 10] The deflection of one lithospheric plate under another is called
a. subduction.
b. seafloor spreading.
c. convergence.
d. continental drift.
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