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Why do we say atomic spectra are like finger prints of the elements?
Each element has a distinctive spectrum unlike that of any other element. The remainder of the analogy should be fairly clear.
How atomic spectra are used in the real world?
Radiation is used for some things like when people have cancer they do somthing with that and when people make nuclear bombs and when it hits it sends out LOTS!!! of radition which can KILL you.
How are elements like fingerprints?
Each element has an unique set of attributes, just like fingerprints. One of the most common attributes of elements used is its spectral signature. When an element is excited, it emits photons on specific frequencies. These frequencies can then be used to map things such as the chemical composition of distant exo-planet atmospheres or moons, such as Titan.
Elements like francium located at the bottom of a group have a lower attraction for their valence electrons because they have a?
large atomic radius.large atomic radius.
Where can you find atomic numbe rand atomic mass in the symbol of element?
The atomic number is usually written to the lower left of the atomic symbol. The atomic mass is usually written to the upper right of the atomic symbol. So, carbon-14 would look like this: 6C14
Why did neils bohr create the bohr model?
To explain atomic emission spectra. Using the Bohr Model of a hydrogen atom, deriving the frequency of these emission lines is almost trivial. Without the Bohr Model, deriving them is impossible. Also, the "classical" model of electrons in an atom, acting like planets around a nucleus, would result in complete collapse of such an atom in a small fraction of a second.
Why did Neils Bohr create the Bohr atom model?
To explain atomic emission spectra. Using the Bohr Model of a hydrogen atom, deriving the frequency of these emission lines is almost trivial. Without the Bohr Model, deriving them is impossible. Also, the "classical" model of electrons in an atom, acting like planets around a nucleus, would result in complete collapse of such an atom in a small fraction of a second.
How you use a spectrometer to help us determine what stars and planets are made of?
Stars and planets are made up of many different atoms. When scientists pass the light coming from the star or planet through the spectrometer they get an emission spectrum. We can compare this emission spectrum to a situation where many people have put their fingerprints in the same spot. The scientist is like a police officer that has to sort them all out. To do this they analyze the emission spectrum to see which atom's individual light fingerprints are in there. In this way, they can use the light from stars and planets to find out what the star or planet is made of.
Why are there empty spaces in the emission spectrum?
"Emission Spectrum" can mean a number of things... Many objects emit light and they all have an emission spectrum, that is a set of wavelengths of light that they give out. The emission spectrum for an L.E.D. bulb for instance is pretty narrow, just one visible colour. The emission spectrum of a star is very wide, encompassing non-visible light as well. It is probably these stellar emission spectra you are referring to, so I'll go on from that assumption. The fusion processes within a star (at most levels from core to surface, but mostly in the core) create most of a spectrum, but some of this light is absorbed by the outermost layers. That is why we see gaps, and molecules of certain types absorb certain parts of the spectrum, so we use the spectrum to determine composition. We also see spectra from diffuse bodies like nebulae. These are, broadly, of 2 types, emission and absorption. Absorption spectra occur when we observe a known star through the cloud, and extra lines missing beyond what we expect of the star will be emblematic of the constituents of the cloud. Emission spectra from clouds can also occur, that is when the light falling on them is not aligned with us, what we see is several narrow bands of light, which has been absorbed and re-emitted by the cloud.
Hydrogen-like atom spectra and Bohr atom spectra?
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What animal has human like fingerprints?
All mammals have unique fingerprints.
Are koalas fingerprints nearly identical to human fingerprints?
Not really. While koalas are the only known animal to have distinctive fingerprints, they can be distinguished from the fingerprints of a human. Like humans, their fingerprints comprise ridges in a variety of patterns.
Why do we say atomic spectra are like finger prints of the elements?
Each element has a distinctive spectrum unlike that of any other element. The remainder of the analogy should be fairly clear.
How are Zebras Stripes like fingerprints?
Zebra stripes are like fingerprints because no two fingerprints can be the same and on a zebra no two zebras can have the same stripe pattern.
Do koalas and humans have unique fingerprints?
Not really. While koalas are the only known animal to have distinctive fingerprints, they can be distinguished from the fingerprints of a human. Like humans, their fingerprints comprise ridges in a variety of patterns.
Are koalas' fingerprints like ours?
Yes and no. According to the Australian Koala Foundation, koalas have fingerprints that are very distinct from each other, just as humans do. However, they are easily discernible from human fingerprints.
What radioactive emission is a particle?
Alpha emission is a 4helium nucleus, which behaves like a particle. Beta emission is an electron, which behaves like a particle. Gamma emission is a photon, which behaves like a particle. Experiments can also be set up to show their wavelike properties (for alpha, beta, and gamma radiation).
