in general ionization energies Es) increase from left to right in the p Boron P there is a decrease in E. Which of the following is the best explan shell and subshell as you answer this quest

Chemistry & Chemical Reactivity
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Chapter7: The Structure Of Atoms And Periodic Trends
Section: Chapter Questions
Problem 65SCQ: Answer the following questions about first ionization energies. (a) Generally ionization energies...
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Energy (kJ/mol)
F.
%24
In general, ionization energies (IEs) increase from left to right in the periodic table. See the Figure below. However, as one moves from Berylium CHe to
Boron PB) there is a decrease in IE. Which of the following is the best explanation for this observation? Please think carefully about the difference between
a shell and subshell as you answer this question.
2500
Не
Ne
2000
Ar
1500
CI
1000
Be
24
Mg
Si
Ca
B
Transcribed Image Text:Energy (kJ/mol) F. %24 In general, ionization energies (IEs) increase from left to right in the periodic table. See the Figure below. However, as one moves from Berylium CHe to Boron PB) there is a decrease in IE. Which of the following is the best explanation for this observation? Please think carefully about the difference between a shell and subshell as you answer this question. 2500 Не Ne 2000 Ar 1500 CI 1000 Be 24 Mg Si Ca B
500
Li
Al
Na
K
0.
4 6
8
10
12 14
16 18
20
Atomic number
O As you move from berylikum to boron you start a new subshell within a shell (e.g. go from 3s to 3p) and this subshell is further from the nucleus.
As you move from berylium to boron you start a new principal quantum number (eg. move from n1 to n2) and hence a new shell.
OC As you move from berylium to boron you start a new subshell within a shell (eg. go from 3s to 3p) and thes subshell is closer the nucleus
Od
As you move from berylium to boron you begin to pair electrons in the orbitals.
Oe The shell model cannot be used to explain this observation.
2.
Transcribed Image Text:500 Li Al Na K 0. 4 6 8 10 12 14 16 18 20 Atomic number O As you move from berylikum to boron you start a new subshell within a shell (e.g. go from 3s to 3p) and this subshell is further from the nucleus. As you move from berylium to boron you start a new principal quantum number (eg. move from n1 to n2) and hence a new shell. OC As you move from berylium to boron you start a new subshell within a shell (eg. go from 3s to 3p) and thes subshell is closer the nucleus Od As you move from berylium to boron you begin to pair electrons in the orbitals. Oe The shell model cannot be used to explain this observation. 2.
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