W.2-4 Chem: Atoms, Lightwaves & particles, Periodic table

Created by: LKia96
Created on: 11-05-21 17:22

What is the relationship between energy (E) and wavelength (λ) ? (equation)

E = hc/λ

(E = hv)

E is energy in J
h is Planck's constant
λ is wavelength in cm-1
c is speed of light

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What is the wave function?

A model of the uncertainty principle: it shows where an electron is most likely to be at any given point.
The higher/lower the peak, the greater the possibility to find the electron at that point.

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What does the shading of a lobe on a p/d orbital represent?

The shading represents positive/vs negative energies (not charges) of the electrons

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Give 3 rules for electron arrangement

Aufbau: electrons occupy the lowest energy orbital available.
Pauli (aka exclusion): max of 2 electrons per orbital, HAVE to be one spin up and one spin down (or they cancel each other out)
Hund's: orbitals with the same energy electrons occupy them singl

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Describe Shielding and how it works

Shielding
= How well a nucleus holds on to their electrons

"As the number of electrons between the outer electrons and the nucleus increases, the outer electrons feel less nuclear attraction. This lessening of the pull of the nucleus by inner electron sh

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Other cards in this set

Card 2

Front

What is the wave function?

Back

A model of the uncertainty principle: it shows where an electron is most likely to be at any given point.
The higher/lower the peak, the greater the possibility to find the electron at that point.