SL Chem 1500 Section 2

Electron Configurations

100

1s²2s²2p⁶3s¹ is the electron configuration for this element. 

what is Na? 

200

this is the electron configuration of As? 

what is [Ar]4s²3d¹⁰4p³

300

this rule describes how when degenerate orbitals are available, the electron configuration of the lowest energy has the maximum number of unpaired electrons with the same spin.

what is Hund's rule

400

this is the electron configuration for Sr⁺²

[Ar]4s²3d¹⁰4p⁶5s⁰ 

500

Chromium and Copper Electron configurations are determined experimentally to be ____________ and _______________

Cr = [Ar]4s¹ 3d⁵

Cu = [Ar]4s¹ 3d¹⁰

Quantum Theory

100

this is the equation for the energy of a photon 

what is E = hν OR E=hc/λ

200

this is how De Broglie modified Bohr's Theory

what is considering the electrons as standing waves? 

300

this refers to a discreet bundle/packet of energy 

what is a quantum 

400

this electromagnetic radiation has a wavelength between 10^-11 - 10^-8 

what is X-Ray

500

a photon has an energy of 3.05 x 10^-19. What is the wavelength (in nanometers) 

λ = 652 nm

Periodic Table

100

these are outer shell electrons involved in bonding 

what are valence electrons 

200

this is what call group 18 of the periodic table 

what are the nobel gases 

300

This group of elements readily gains electrons to attain their noble gas state

what is halogens 

400

this is how we describe two atoms that have the same electron configurations

what is isoelectronic 

500

these 2 groups in the periodic table exhibit exceptions to the traditional electron configuration rules. 

what are groups 6 and 9 

Quantum Numbers

100

this quantum number describes energy levels and size. 

what is n

200

this quantum number indicates orbital shape 

what is l

300

m_s can equal ____ or ____ and indicates the _________

+1/2

-1/2

electron spin

400

what is the full set of quantum numbers for a 4d¹⁰ orbital? (not including m_s)

n=4

l=2

m_l= -2, -1, 0, 1, 2

500

This is the full set of Quantum numbers for H

n=1

l=0

m_l=0

m_s = +1/2

Orbitals

100

these are 2 lobed shaped orbitals 

what are p orbitals 

200

these are the l and m_l quantum numbers associated with f orbitals

what is l = 3; ml = -3, -2, -1, 0, 1, 2, 3

300

this orbital follows 4d as the next highest energy orbital 

what is 5p 

400

each orbital is associated with a complete set of these? 

what are quantum numbers

500

this refers to a zone of no electron density 

what is a Node?