35493299
Description
Mind Map by Dmitry Skvortsov, updated more than 1 year ago
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Created by Dmitry Skvortsov
almost 4 years ago
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Atomic Structure
- Composition of Atoms
- Protons (1 amu)
- +1 charge
- +1 charge
- Neutrons (1 amu)
- neutral charge
- neutral charge
- Electrons (negligible mass)
- -1 charge
- -1 charge
- Protons (1 amu)
- Isotopes
- Same number of protons but different number of neutrons
- Carbon Isotopes
- Carbon 12, 13, 14
- 1/12 of carbon-12 is 1 amu
- Carbon 12, 13, 14
- Same number of protons but different number of neutrons
- Relative Atomic Mass
- An average of all common isotopes of an element dependent on abundance
- An average of all common isotopes of an element dependent on abundance
- Emission Spectra
- Electromagnetic spectrum
- Wavelength (λ = meters)
- Frequency (v = sec)
- Velocity
- c = m/sec
- c = m/sec
- c (meters/sec) = λ / v
- Hydrogen Emission Spectra
- Wavelength (λ = meters)
- Electromagnetic spectrum
- Atomic emission spectra is based on wavelength
- Violet = 400
- Red = 700
- Violet = 400
- When energy is supplied to an atom electrons
are excited (gain energy)
- they move from ground state to an excited state
- electrones are going back to
ground state (loose energy)
- emit light
- Energy emit corresponds to a particular wavelength
- The more energy was emit, the higher the frequency of light is => lower wavelength
- The more energy was emit, the higher the frequency of light is => lower wavelength
- Energy emit corresponds to a particular wavelength
- emit light
- electrones are going back to
ground state (loose energy)
- they move from ground state to an excited state
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