(1) (40 points) Multiple-Choice Questions 1) Which pair of elements from differe
ID: 695323 • Letter: #
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(1) (40 points) Multiple-Choice Questions 1) Which pair of elements from different groups resemble each other the most in their chemical A) Be and B B)Al and Si C) Li and Be D) Al and Be E) Be and C Answer 2) Which of the following is an amphoteric oxide? properties? Answer 3) Which of the elements listed below has the following pattern for its first six ionization energies? (i first ionization energy, h = second ionization energy, etc.) A) Ca B) Si C)A D) Se E)P Answer ( 4) The electron affinity of fluorine is essentially equal to A) the negative of the ionization energy F B) the ionization energy F C) the negative of the ionization energy F D) the ionization energy Ne. E) the negative of the ionization energy Ne Answer (Explanation / Answer
1)
the question is talking about diagonal relationship
Al and Br are diagonal elements to each other
Answer: D
2)
Al2O3 is amphoteric oxide
because Al is metalloid
Answer: C
A and B are basic oxide because they are oxide of metal
D and E are acidic oxide because they are oxide of non metal
Only 1 question at a time please
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