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Which of the following sets of elements is written in order of decreasing atomic radius?
(1) platinum, lead, arsenic, radium, tungsten.
(2) arsenic, lead, platinum, tungsten, radium.
(3) radium, tungsten, platinum, lead, arsenic
.(4) tungsten, platinum, lead, arsenic, radium
Answers: 2
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According to le chatelier’s principle, a system in chemical equilibrium responds to stress by shifting the equilibrium in a direction that reduces the stress. normalizes the stress. increases the stress. changes the stress.
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Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.
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Which of the following sets of elements is written in order of decreasing atomic radius?
(1) platin...
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