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☆☆☆☆☆Answer By exposing materials to a hot flame (from a Bunsen burner typically), the color of the flame can be used to identify the material. Certain elements give off a characteristic color when heated to high temperature. See the Related Links for "Wikipedia: flame test" to the bottom for the answer.
A method of obtaining an emission spectrum from a sample
The frequency of a wave, represented by the letter f, is the number of occurrences of a repeating event per unit time. It is also referred to as temporal frequency. The SI unit of cycles per second is called hertz or Hz. Hz can be expressed as a reciprocal second (s-1 or 1/s).
The number of waves that pass a point in 1 second
Radioactive dating is a technique used to find how old an object is.
One such example is potassium-argon dating, where potassium decays into argon. The proportion of potassium to argon suggests how old the object in question is.
An equation used is t = (1/c)Ln(1+(D/P)) Where c is the decay constant D is number of daughter atoms (number decayed) P is the number of parent atoms (number undecayed) t is the age of the object.
Another common technique in dating an object is carbon dating. Because the amount of carbon-14 has remained roughly constant through time on the earth it is possible to calculate the age of an object by finding the proportion of carbon-14 to carbon-12.
There is a suspicion that the relative abundance of carbon-14 could be changing due to the thinning of the ozone layer. The amount of carbon-14 depends on the amount of radiation permeates the ozone and thus the amount could be changing. Not proven, only a hypothesis.
Accuracy radioactive dating is called radiometric dating. This is taught in biology.
It splits light up into a frequency spectrum.
Temperature is the measure of average kinetic energy of all the atoms and molecules in an object
The equation for the alpha decay of 239Pu is: 94239Pu --> 92235U + 24He
where 24He represents the alpha particle, which is a Helium nucleus.
An isotope of an element that is radioactive
3.96 10-19 j
The emission spectrum of an element
It maintains the distances between planets.
It has a very long half-life. Disposal of radioactive waste is the biggest problem. Proper disposal is essential to ensure protection of the health and safety of the public and quality of the environment including air, soil, and water supplies.
5.98 x 10^14 Hz
ml=0
4.32 x 10^-19 j
The mass of a nucleus is subtracted from the sum of the masses of its individual components.
An alpha particle being emitted would result in a transmutation.
A range of wavelenghs of frequencies of electromagnetic raditation
The wavelength is 671 nm.
Radioactive decay is the spontaneous breakdown of a nucleus into smaller parts.
4.78 x 10-19
4.5 × 1015 J
A particle that binds quarks to one another. (Apex)
