emission spectra emission spectrum of hydrogen 1 nm = 1 x 10 -9 m = “a billionth of a meter” 410...

Emission Spectrum of Hydrogen 1 nm = 1 x 10 -9 m = “a billionth of a meter” 410 nm 434 nm 486 nm 656 nm

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Emission Spectrum of Hydrogen

1 nm = 1 x 10-9 m = “a billionth of a meter”

410 nm 434 nm 486 nm 656 nm

Emission Spectrum of an Element

1 nm = 1 x 10-9 m = “a billionth of a meter”

410 nm 434 nm 486 nm 656 nm

1 nm = 1 x 10-9 m = “a billionth of a meter”

Continuous and Line Spectra

4000 Ao

5000 6000 7000

light

400 450 500 550 600 650 700 750 nm

Visiblespectrum

(nm)

Page 4: Emission Spectra Emission Spectrum of Hydrogen 1 nm = 1 x 10 -9 m = “a billionth of a meter” 410 nm434 nm486 nm656 nm

Continuous and Line Spectra

4000 Ao

5000 6000 7000

4000 Ao

5000 6000 7000

light

Page 5: Emission Spectra Emission Spectrum of Hydrogen 1 nm = 1 x 10 -9 m = “a billionth of a meter” 410 nm434 nm486 nm656 nm

Flame Emission Spectra

Photographs of flame tests of burning wooden splints soaked in different salts.Photographs of flame tests of burning wooden splints soaked in different salts.

Include link to web page

http://www.unit5.org/christjs/flame%20tests.htm

methane gas wooden splint strontium ioncopper ionsodium ion calcium ion

Page 6: Emission Spectra Emission Spectrum of Hydrogen 1 nm = 1 x 10 -9 m = “a billionth of a meter” 410 nm434 nm486 nm656 nm

Page 7: Emission Spectra Emission Spectrum of Hydrogen 1 nm = 1 x 10 -9 m = “a billionth of a meter” 410 nm434 nm486 nm656 nm

Flame Tests for Certain Metals

BORAX BEAD TESTS FOR CERTAIN METALS(All beads formed in the oxidizing flame)

Page 8: Emission Spectra Emission Spectrum of Hydrogen 1 nm = 1 x 10 -9 m = “a billionth of a meter” 410 nm434 nm486 nm656 nm

Fireworks

Page 9: Emission Spectra Emission Spectrum of Hydrogen 1 nm = 1 x 10 -9 m = “a billionth of a meter” 410 nm434 nm486 nm656 nm

Fireworks

Page 10: Emission Spectra Emission Spectrum of Hydrogen 1 nm = 1 x 10 -9 m = “a billionth of a meter” 410 nm434 nm486 nm656 nm

Page 11: Emission Spectra Emission Spectrum of Hydrogen 1 nm = 1 x 10 -9 m = “a billionth of a meter” 410 nm434 nm486 nm656 nm

Common chemicals used in the manufacture of fireworks

Ammonium perchlorate aluminum Blue flame: copper carbonate, copper sulfate, or copper oxide

Barium chlorate antimony sulfide Red flame: strontium nitrate or strontium carbonate

Barium nitrate charcoal White flame: magnesium or aluminum

Potassium chlorate magnesium Yellow flame: sodium oxalate or cryolite (Na3AlF6)

Potassium nitrate sulfur Green flame: barium nitrate or barium chlorate

Potassium perchlorate titanium White smoke: potassium nitrate plus sulfur

Strontium nitrate Colored smoke: potassium chlorate and sulfur, plus organic dye

Whistling noise: potassium benzoate or sodium salicylate

White sparks: aluminum, magnesium, or titanium

Gold sparks: iron filings or charcoal

Almost any combination of an oxidizer and a fuel may be used along with the compounds needed to produce a desired special effect.

Oxidizers Fuels (Reductants) Special Effects

Page 12: Emission Spectra Emission Spectrum of Hydrogen 1 nm = 1 x 10 -9 m = “a billionth of a meter” 410 nm434 nm486 nm656 nm

Composition of Fireworks

• Gunpowder– Sulfur, charcoal, potassium nitrate (saltpeter)

• Salts (to give color)– Red = lithium– Green = copper

Page 13: Emission Spectra Emission Spectrum of Hydrogen 1 nm = 1 x 10 -9 m = “a billionth of a meter” 410 nm434 nm486 nm656 nm

Electron Energy Levels

nucelus

1st energy level

2nd energy level

3rd energy level

1999, Addison, Wesley, Longman, Inc.

Energyabsorbed

Energylost

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Niit foundation m billionth 2013

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Author(s) Doc URL · at the respective excitation and emission wavelengths of 356 nm and 458 nm. Several samples were collected for histological observation. Tissue blocks, including

DOUGLAS COUNTY SCHOOL BOARD DISTRICTS - dcssga.org · nm nm nm nm nm nm nmnm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nmnm nm

Coherently amplified multi-photon emission toward neutrino ...inst.cyric.tohoku.ac.jp/fpua2018/slide/fpua2018-hiraki.pdf · pulse Amp. DFG. Nd:YAG. LBO. SHG. 298 nm. 596 nm. ECDL,

M billionth 2012 concept

Short-range surface plasmonics: Localized electron emission … · Short-range surface plasmonics: Localized electron emission dynamics from a 60-nm spot on an atomically flat single-crystalline

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Journal of Controlled Releasebps.lab.uic.edu/PDF/JControlRel_171_288_2013.pdf · 2017. 8. 21. · tation and emission: 488 and 519 nm) or trypan blue (excitation and emission: 595

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Ward / Quartier 1...$K $K $K $ $K!C nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm …

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NM - introduction - Weebly...Intro & Physics from Medical Imaging Signals and Systems , Chapter 7, by Prince and Links NM - introduction • Relies on EMISSION of photons from body

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emission spectra emission spectrum of hydrogen 1 nm = 1 x 10 -9 m = “a billionth of a meter” 410...

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