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13 Dec 2019

<p>write out the electronic configuration using a superscript with each other; then write out the electronic configuration using noble gas notation for each element:<br />[a] Al, [b] Se, [c] Sr, [d] As, [e] In. (give the electronic configuration first and the noble gas notation second with the orbitals in order of increasing energy (e.g 1S^2 2s61 [He] 2s^1).

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17 Dec 2019

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Related questions

For each of the following, write out the ground state electronic configuration in full i.e. not using nearest noble gas (e.g. write Be as 1s2 2s2 , NOT [He]2s2 ):

(a) elements with Z = 3, 10, 22

(b) the third-row alkali metal (Li is the first-row alkali metal)

(c) the element in the fourth row of Group IV (C is the first-row Group IV element)

(d) the seventh transition element of the first transition series

(e) the third transition element of the third transition series

(f) the last of the lanthanides

(g) the lightest halogen (the halogens are the Group containing F, Cl, Br, etc.)

(h) the element in the third row of Group III (B is the first-row Group III element)

4. (20 pts, 2 pts each) Multiple choice questions from chapter 7.Place the letter representing the
correct response in the blank provided.
_____ Which of the following do not exist under normal conditionsas a diatomic gas?
(A) hydrogen, (B) oxygen, (C) fluorine, (D) chlorine, (E)bromine
_____ In nature, the noble gases exist as
(A) monatomic gaseous atoms, (B) the gaseous fluorides, (C) solidsin minerals,
(D) alkali metal salts, (E) the sulfides
_____ Of the elements below, _____ has the highest electronaffinity.
(A) oxygen, (B) sodium, (C) fluorine, (D) hydrogen, (E)chlorine
_____ Of the following elements, which has the largest firstionization energy?
(A) Se, (B) As, (C) S, (D) Sb, (E) Ge
_____ Of the hydrogen halides, only _____ is a weak acid.
(A) HCl (aq), (B) HBr (aq), (C) HF (aq), (D) HI (aq), (E) all ofthem
_____ The carbonate of which alkali metal is used in treatment ofmanic-depressive illness?
(A) Li, (B) Na, (C) K, (D) Rb, (E) Cs
_____ The reaction of a metal with a nonmetal produces a(n)
(A) base, (B) salt, (C) acid, (D) oxide, (E) hydroxide
_____ Which element is solid at room temperature?
(A) Cl2, (B) F2, (C) Br2, (D) I2, (E) H2
_____ Which of the following correctly lists the five atoms inorder of increasing size (smallest to
largest)?_(A) F < K < Ge < Br < Rb, (B) F < Ge <Br < K < Rb,
(C) F < K < Br < Ge < Rb, (D) F < Br < Ge < K< Rb, (E) F < Br < Ge < Rb < K
_____ Which one of the following is a metalloid?
(A) Ge, (B) S, (C) Br, (D) Pb, (E) C
5. (20 pts, 2 pts each) Multiple choice questions from chapter 8.Place the letter representing the
correct response in the blank provided.
_____ Which of the following ions does not have a noble-gasconfiguration?
(A) V5+ (B) Si4+ (C) Nb3+ (D) S2– (E) Os8+
_____ Which of the following is correctly arranged with respect tothe size of the atom/ion?
(A) S < S1– < S2– (B) Mg2+ < Na+ < Ne (C) Ni < Cu+< Zn2+
_____ What type of covalent bond between like atoms is thelongest?
(A) triple (B) double (C) single (D) They are all the samelength.
_____ Arrange the following in order of increasing bond polarity:C-O, P-O, Cu-O, Mn-O
(A) C-O < P-O < Cu-O < Mn-O (B) C-O < P-O < Mn-O< Cu-O
(C) Mn-O < Cu-O < P-O < C-O (D) P-O < C-O < Cu-O< Mn-O
_____ Write a single Lewis structure that obeys the octet rule, andcalculate the formal charges on
all the atoms in PO4
3–.
(A) P 2+, O 1– (B) P 1+, O 1– (C) P 4+, O 2– (D) P 2+, O 2– (E) P1+, O 2–
_____ The Lewis structure of InBr3 contains how many valenceelectrons?
(A) 24 (B) 7 (C) 6 (D) 3 (E) 34
_____ Using Lewis structures that satisfy the octet rule, determinethe number of bonds formed by
the central element in each of the following: SiO4
4–, PO4
3–, SO4
2–, ClO4
1–.
(A) 4, 5, 6, 7 (B) 2, 3.5, 5, 6.5 (C) 4, 5, 5, 6 (D) 4, 4, 4, 4 (E)5, 6, 7, 8
_____ The Lewis electron-dot structure of IF5 gives the centralI
(A) an octet (B) 5 nonbonding pairs and 1 bonding pair (C) 5bonding pairs only
(D) 1 nonbonding pairs and 5 bonding pairs (E) 1 nonbonding pairand 4 bonding pairs
_____ In the thiocyanate anion, (SCN)–, which of the following isnot an accepted multiplicity for
the sulfur-carbon bond and the carbon-nitrogen bond,respectively?
(A) single, single (B) double, double (C) single, triple (D)triple, single
_____ Which of these ions (oxidation states) does not have anoble-gas configuration?
(A) Cr3+ (B) Cr with an oxidation state of 6+ (as in CrO4
2–)
(C) S with an oxidation state of 6+ (as in SO4
2–) (D) S2– (E) Hf 4+

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