Which of the following are correct for each question? 1) The 1s orbital is the s

Question

Which of the following are correct for each question? 1) The 1s orbital is the smallest in __________________atoms?    a.Cl    b.F    c.I    d.the 1s orbital in all the above atoms arethe same. 2) Elactron in the 1s subshell are much closer to the nucleusin Ar than in Hedue to the larger ___________________ inAr?    a.Effective nuclear charge    b.Hund's rule    c.azimuthal quantum number    d.Pauli's exclusion rule 3) Atomic radiusgenerally increases as we move ___________    a.down agroup and from right to left across a period    b.up agroup and from left to right across a period    c.down agroup; the period position has no effect    d.up agroup and from right to left across a period 4) Of the following,which gives the correct order for the atomic radius for Mg, Na, P,Si, and Ar?    a.Mg > Na > P > Si > Ar    b.Ar >Si > P > Na > Mg .    c.Si > P> Ar > Na > Mg    d.Na > Mg > Si > P >Na 5) Screening by thevalence electrons in atoms is _________________.    a.lessefficient than that by core electrons    b.moreefficient than that by core electrons    c.essentially identical to that by coreelectrons    d.responsible for a general increase in atomicradius going across a period 6) Which one of thefollowing atoms has the largest radius?    a.O       b.F       c.S    d.Cl 7) Which one of thefollowing has the smallest radius?    a.Na    b.Cl    c.Fe    d.P 8) In which of thefollowing atoms is the 2s orbital closest to thenucleus?    a.S    b.Cl    c.P    d.Si 9) In which of thefollowing is the 3s orbital closest to the nucleus?    a.Br    b.Cl    c.At    d.I 10) Which of thefollowing correctly lists the five atoms in order of increasingsize?    a.F < K< Ge < Br < Rb    b.F < Ge< Br < K < Rb    c.F < K< Br < Ge < Rb    d.F < Br< Ge < K < Rb 11) Of the followingatoms, which has the largest first ionizationenergy?    a.Br    b.O    c.c    d.P 12) Which of thefollowing has the largest second ionizationenergy?    a.Si    b.Mg    c.Al    d.Na 13) Which of thefollowing correctly represents the second ionization ofaluminum?    a.Al+(g)  + e-   Al (g)    b.Al(g)    Al+(g) +  e-    c.Al -(g)  + e-   Al2-(g)    d. Al+(g)    Al 2+(g) + e- 14) The ion with thesmallest diameter is ______?    a.Br-    b.Cl-    c.I-    d.F- 15) Which of thefollowing sets contains species that areioselectronic?    a.F, Ne,Na    b.P3- , S 2- , Ar-    c.F-, Ne,Na+    d.Cl, Ar, K     Which of the following are correct for each question? 1) The 1s orbital is the smallest in __________________atoms?    a.Cl    b.F    c.I    d.the 1s orbital in all the above atoms arethe same. 2) Elactron in the 1s subshell are much closer to the nucleusin Ar than in Hedue to the larger ___________________ inAr?    a.Effective nuclear charge    b.Hund's rule    c.azimuthal quantum number    d.Pauli's exclusion rule 3) Atomic radiusgenerally increases as we move ___________    a.down agroup and from right to left across a period    b.up agroup and from left to right across a period    c.down agroup; the period position has no effect    d.up agroup and from right to left across a period 4) Of the following,which gives the correct order for the atomic radius for Mg, Na, P,Si, and Ar?    a.Mg > Na > P > Si > Ar    b.Ar >Si > P > Na > Mg .    c.Si > P> Ar > Na > Mg    d.Na > Mg > Si > P >Na 5) Screening by thevalence electrons in atoms is _________________.    a.lessefficient than that by core electrons    b.moreefficient than that by core electrons    c.essentially identical to that by coreelectrons    d.responsible for a general increase in atomicradius going across a period 6) Which one of thefollowing atoms has the largest radius?    a.O       b.F       c.S    d.Cl 7) Which one of thefollowing has the smallest radius?    a.Na    b.Cl    c.Fe    d.P 8) In which of thefollowing atoms is the 2s orbital closest to thenucleus?    a.S    b.Cl    c.P    d.Si 9) In which of thefollowing is the 3s orbital closest to the nucleus?    a.Br    b.Cl    c.At    d.I 10) Which of thefollowing correctly lists the five atoms in order of increasingsize?    a.F < K< Ge < Br < Rb    b.F < Ge< Br < K < Rb    c.F < K< Br < Ge < Rb    d.F < Br< Ge < K < Rb 11) Of the followingatoms, which has the largest first ionizationenergy?    a.Br    b.O    c.c    d.P 12) Which of thefollowing has the largest second ionizationenergy?    a.Si    b.Mg    c.Al    d.Na 13) Which of thefollowing correctly represents the second ionization ofaluminum?    a.Al+(g)  + e-   Al (g)    b.Al(g)    Al+(g) +  e-    c.Al -(g)  + e-   Al2-(g)    d. Al+(g)    Al 2+(g) + e- 14) The ion with thesmallest diameter is ______?    a.Br-    b.Cl-    c.I-    d.F- 15) Which of thefollowing sets contains species that areioselectronic?    a.F, Ne,Na    b.P3- , S 2- , Ar-    c.F-, Ne,Na+    d.Cl, Ar, K    

Explanation / Answer

1) The 1s orbital is the smallest in __________________atoms?       d.the 1s orbital in allthe above atoms are the same. 2) Elactron in the 1s subshell are much closer to the nucleusin Ar than in He due to the larger ___________________ inAr?    a.Effective nuclear charge 3) Atomic radiusgenerally increases as we move ___________    a.down agroup and from right to left across a period 4) Of the following,which gives the correct order for the atomic radius for Mg, Na, P,Si, and Ar?    d.Na > Mg > Si > P >Ar 5) Screening by thevalence electrons in atoms is _________________.    a.lessefficient than that by core electrons 6) Which one of thefollowing atoms has the largest radius?     c.S 7) Which one of thefollowing has the smallest radius?    b.Cl 8) In which ofthe following atoms is the 2s orbital closest to thenucleus?    b.Cl 9) In which of thefollowing is the 3s orbital closest to the nucleus?    c.At 10) Which of thefollowing correctly lists the five atoms in order of increasingsize?    d.F < Br< Ge < K < Rb 11) Of the followingatoms, which has the largest first ionizationenergy?    d.P 12) Which of thefollowing has the largest second ionizationenergy?      d.Na 13) Which of thefollowing correctly represents the second ionization ofaluminum?    d. Al+(g)    Al 2+(g) + e- 14) The ion with thesmallest diameter is ______?      d.F- 15) Which of thefollowing sets contains species that areioselectronic?    c.F-, Ne,Na+    

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