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CHEM 101: Loncapa Review Questions For Exam 3 Questions And Answers 100% Correct!!!
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CHEM 101: Loncapa Review QuestionsFor Exam 3 Questions And Answers
100% Correct!!!
To remove one electron from Mg requires a certain amount of energy. Which
of the following is the best statement concerning the amount of energy in
removing a second electron from magnesium?
Answer: Removing the second electron requires more energy because the second
electron is being taken from a positive ion.
How many electrons can be contained in all of the orbitals with a principal
energy level of 3?
Answer: 18.
Consider the following representation of a 2p-orbital: Which of the following
statements best describes the movement of electrons in a p-orbital?
Answer: The electron movement cannot be exactly determined.
In general, the rows on the periodic table correspond to ______________ and
the columns numbered 1A, 2A, ... 8A correspond to ______________ .
Answer: the energy level of the valence electrons; the number of valence
electrons.
Which of the following ranks the compounds from smallest to largest bond
angle around the central atom?
Answer: NH₃, BF₃, CO₂.
Which electron is in the lowest energy state?
Answer: An electron in the 1s orbital of the uranium (U) atom.
In an exothermic reaction
Answer: the products are more stable than the reactants.
Rank the following from smallest to largest atomic radius.
Answer: O, Zn, Ca, Ba.
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