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http://www.cjass.ca/conv49n4.html Ref : The Electronic Absorption Spectra of Lanthanum (III), Cerium (III)and Thorium (IV) Ions in Different Solvents Rafie H. Abu-Eittah*, Sayed A. Marie and Mabrouka B. Salem. Canadian Journal of Analytical Sciences & Spectroscopy Received: May 19, 2004 Accepted (in revised form): August 2, 2004 See the Web Links to the left of this answer for a direct link to the pdf of this article.
What else can I help you with?
Why atomic mass is called relative atomic mass?
Atomic mass is so small you can't actually measure it. So, just like carbon dating, you have to use a relative mass.
What is the thickness of a 2p?
The term "2p" typically refers to the second principal energy level (n=2) and the p subshell in atomic physics. The thickness of an atomic orbital, such as 2p, isn't defined in a strict sense like a physical object, as orbitals represent probabilities of electron locations rather than fixed boundaries. However, the 2p orbitals are generally considered to extend outwards from the nucleus, with their shapes and sizes influenced by factors like the atomic number and the specific electron configuration.
Which nutrient is not in the simplest form needed for absorption?
Proteins are not in their simplest form needed for absorption; they must be broken down into amino acids through digestion. This process occurs primarily in the stomach and small intestine, where enzymes like pepsin and pancreatic proteases facilitate the breakdown. Once reduced to amino acids, they can be absorbed through the intestinal lining into the bloodstream for use by the body.
How is absorption and scattering used in everyday lives?
Absorption and scattering are fundamental concepts used in various everyday applications. For example, sunglasses utilize absorption to block harmful UV rays while allowing visible light to pass through, protecting our eyes. Scattering is evident in the blue color of the sky; as sunlight passes through the atmosphere, shorter blue wavelengths scatter more than other colors. Additionally, these principles are employed in technologies like medical imaging and environmental monitoring, helping us understand and navigate our surroundings.
What did Albert Einstein do to help?
He invented atomic power He came up with the theory of Relativity. He came up with the theory of Gravity. He had all these equations like E=mc2
What microscope can plot an absorption spectrum of the item under examination?
A spectrophotometer is an instrument commonly used to measure absorption spectra of samples. Microscopes do not typically have the capability to measure absorption spectra like a spectrophotometer can.
Why do we say atomic spectra are like fingerprints of the elements?
Atomic spectra are like fingerprints of elements because each element has a unique set of discreet emission or absorption lines in its spectrum. These lines correspond to specific energy levels of electrons within the atoms of that element. By analyzing the pattern and position of these lines in a spectrum, scientists can identify the elements present in a sample.
What series are called elements 57 to 70?
Elements from atomic number 57 (Lanthanum) to 71 (Lutetium) are called the Lanthanides. Lanthanide means "like Lanthanum" and so, the Lanthanides are based on Lanthanum. Only one of the Lanthanides is radioactive: Promethium (Pm - No. 61)
What is the use of Atomic Absorption in Forensic?
Atomic absorption is used in forensics to analyze trace elements in samples such as blood, hair, or soil. By measuring the absorption of specific wavelengths of light by the atoms in the sample, atomic absorption spectroscopy can determine the presence and concentration of elements like arsenic, lead, or mercury, which can be crucial in solving criminal cases.
What produces a continuous spectrum and how does it differ from other types of spectra?
A continuous spectrum is produced by a hot, dense object emitting light at all wavelengths. It differs from other types of spectra, like emission and absorption spectra, which only show specific wavelengths of light emitted or absorbed by atoms or molecules.
What are the 2 words that describe the classification of the 17 chemical elements with the numbers 57-71?
Elements from atomic number 57 (Lanthanum) to 71 (Lutetium) are called the Lanthanides. Lanthanide means "like Lanthanum" and so, the Lanthanides are based on Lanthanum. Only one of the Lanthanides is radioactive: Promethium (Pm - No. 61)
Why is the atomic emission spectra like fingerprints?
Atomic emission spectra are like fingerprints because they are unique to each element. Each element has its own specific set of energy levels and electron configurations, resulting in a distinct pattern of spectral lines when the element emits light. This characteristic pattern can be used to identify and distinguish different elements, similar to how fingerprints are unique to each individual.
What does an absorption spectrum look like and how is it used in scientific research?
An absorption spectrum is a graph that shows how much light is absorbed by a substance at different wavelengths. It appears as a series of peaks and valleys. Scientists use absorption spectra to identify the chemical composition of a substance, study its properties, and understand its behavior in various conditions.
Hydrogen-like atom spectra and Bohr atom spectra?
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Why do i study absorption spectra of the dye?
That seems like a question you should be answering for us. I can think of several reasons for doing so, but why you specifically are doing it, you should know better than we do.
Is lanthanum radioactive?
Most, 99.91%, of the lanthanum found in nature is 139La, which is not radioactive. The other 0.09% is made up of 138La, which is radioactive but has a very long half life of 105,000,000,000 years. Like all elements, lanthanum has synthetic radioactive isotopes.
Can you tell from these absorption spectra whether red light is effective in driving photosynthesis?
No, absorption spectra provide information on the wavelengths of light that are absorbed by a pigment, but they do not inherently indicate the effectiveness of that light in driving photosynthesis. Red light is typically absorbed by chlorophyll, making it effective in photosynthesis, but further experiments like action spectra or photosynthetic rate measurements are needed to confirm its effectiveness.
