arrangement of e- e- are arranged in energy levels there are 7 energy levels level 1 is closest to...
DESCRIPTION
Each sublevel has orbitals Orbitals are locations within the atom where the e- are likely to be found Each orbital can hold 2 electronsTRANSCRIPT
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Arrangement of e-
• e- are arranged in ENERGY LEVELS
• There are 7 energy levels• Level 1 is closest to the nucleus and has
the lowest energy• Level 7 is farthest from the nucleus and has the highest energy
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Each energy level has sublevels
There are 4 types of sublevel:
S, P, D, and F
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Each sublevel has orbitals
Orbitals are locations within the atom where the e- are likely to be found
Each orbital can hold 2 electrons
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S sublevel orbitalsS orbitals are Spherical shapes
There is one S orbital1 S x 2 e- = 2 e- can fit in S sublevel
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P sublevel orbitals
P orbitals are “peanut” shaped
There are 3 P orbitals, one in each dimension.3 P x 2 e- = 6 e- can fit in P Sublevel
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D sublevel orbitals
D orbitals are “double peanut” shaped
There are 5 D orbitals5 D x 2 e- = 10 e- can fit in D sublevel
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F sublevel orbitals
F orbitals are “fancy” shaped
There are 7 D orbitals7 D x 2 e- = 14 e- can fit in F sublevel
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To Summarize:
7 energy levels4 sublevels ( S, P, D, F)
S orbitals = holds 2 e-P orbitals = holds 6 e-D orbitals = holds 10 e-F orbitals = holds 14 e-
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Arrangement of e- in the atom
7 s 7 p 7 d 7 f6 s 6 p 6 d 6 f5 s 5 p 5 d 5 f4 s 4 p 4 d 4 f3 s 3 p 3 d2 s 2 p1 s
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Arrangement of e- in the atom (aufbau)
nucleus
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Writing electron configurations
____ represents an orbital
represents an e- with “up” spin represents an e- with “down” spin
_____ two e- of opposite spin fill the orbital
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What element is this?
1
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What element is this?
2
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What element is this?
2 1
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Electron configuration for Ne
___ ___ ____ ____ ____1s 2s 2p2 2 6
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Write the e- configuration of As33
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Write the e- configuration of As33
___ ___ ___ ___ ___ ___ ___ ___ ___ 1s2 2s2 2p6 3s2 3p6
___ ___ ___ ___ ___ ___ ___ ___ ___4s2 3d10 4p3
e- will not pair up in p, d or f orbitalsif there is room in the orbital for them to spread out !
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1s2 2s2 2p6 3s2 3p6 4s2
2 – 8 - 8- 2
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What element?
2 2 5
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What element?
2 2 6 2 3