Transcript Document

Alchemy Unit – Investigation III
Lesson 5:
Shell Game
Admit Slip
The two drawings show two ways of
representing the electron arrangement of
the element calcium, Ca.
• Name at least two differences.
• Name at least two similarities.
1
2
4
3
4p
1s
2p
2s
3d
4s
3p
3s
© 2004 Key Curriculum Press.
Unit 1 • Investigation III
The Big Question
• How do electron subshells relate to the
periodic table?
© 2004 Key Curriculum Press.
Unit 1 • Investigation III
Students will be able to:
• Identify an element based on its
electron configuration.
© 2004 Key Curriculum Press.
Unit 1 • Investigation III
Agenda
Admit Slip
Shell Game Activity
Notes
Exit Slip
Homework
© 2004 Key Curriculum Press.
Unit 1 • Investigation III
Information to Start
• Electron shells/energy levels are
divided into electron subshells.
© 2004 Key Curriculum Press.
Unit 1 • Investigation III
Activity
Purpose: This lesson introduces you to
electron subshells. You will explore how
they are related to the periodic table.
(cont.)
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Unit 1 • Investigation III
(cont.)
4pp
2pp
3d
2s
1s
4sp 3pp 3sp
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Unit 1 • Investigation III
(cont.)
Electron configuration
1s22s1
1s22s22p3
1s22s22p63s23p5
Element
nitrogen, N
1s22s22p63s23p64s23d6
1s22s22p63s23p64s23d104p2
1s22s22p63s23p64s23d104p65s24d105p4
tellurium,Te
© 2004 Key Curriculum Press.
Unit 1 • Investigation III
Making Sense
• How is the organization and structure
of the periodic table related to electron
subshells?
(cont.)
© 2004 Key Curriculum Press.
Unit 1 • Investigation III
(cont.)
© 2004 Key Curriculum Press.
Unit 1 • Investigation III
Notes
• Electron shells/energy levels are
divided into electron subshells.
• An electron configuration is a list of
all the subshells that hold electrons for
a given element, written with the
number of electrons in each subshell.
© 2004 Key Curriculum Press.
Unit 1 • Investigation III
Check-In
• Identify the element with the following
electron configuration.
1s22s22p63s23p64s23d104p3
© 2004 Key Curriculum Press.
Unit 1 • Investigation III
Wrap-Up
• Electron shells can be divided further
into subshells, referred to as; s, p, d, f.
• Each subshell can hold a specific
maximum number of electrons. The s
subshell can hold 2 electrons, the p
subshell can hold 6, the d subshell can
hold 10 electrons, and the f subshell
can hold 14.
(cont.)
© 2004 Key Curriculum Press.
Unit 1 • Investigation III
(cont.)
• The periodic table can assist us in
figuring out the sequence of filling the
subshells with electrons.
• Chemists keep track of electrons and
the subshells they are in by writing
electron configurations.
© 2004 Key Curriculum Press.
Unit 1 • Investigation III