aFurthermore, different chemical elements have different spectra. They absorb and reflect spectral energy differently. Different elements are combined to form compounds. Each compound has a unique spectrum due to its unique molecular structure. This is the basis for the application of spectroscopy to ...
maize (Zea Mays[L.]) is an important crop for food security and livelihood improvement for more than 300 million people in sub-Saharan Africa. Different initiatives have focused on developing technologies and innovations
Briefly describe, why do elements in a given group have similar chemical properties? Why are no two emission spectra for different elements ever the same? Why doesn't a gold atom have the same density as a gold coin? Why is Ni not considered a common metal even though it composes ove...
Why are no two emission spectra for different elements ever the same? Why do beryllium and fluorine combine in a 1: 2 Ratio? Why do the group 8A elements rarely react with other elements? Why do transition elements form colored compounds?
There are multiple possibilities for testing metals to identify the different elements that make up an alloy. The basic methods are purely qualitative, and include visual inspection, magnet tests, spark tests or chemical acid tests. Those methods have important limitations, are not applic...
Because different models, each with its few free parameters, can produce these terms by some choice of parameters, one can see why models so different as the nonrelativistic or quasichiral models work {open_quote}{open_quote}well.{close_quote}{close_quote} Finally, expressing the coefficients ...
The pollen spectra are very different from those from pool or surface samples from the wider regional vegetation. The difference is explained by rapidity and time of deposition. The macroscopic remains include elements of the floodplain and moist tundra communities, and include shrubs, heath taxa ...
https://app.spectracal.com/Documents/White%20Papers/BT.1886.pdf Now, on a personal note: I have a primary monitor that can be color calibrated. I also have a BM card ( SDI out to a video monitor). The video monitor has been set up (it has lots of ...
Why are no two emission spectra for different elements ever the same? Why is iodine able to form the largest variety of interhalogen compounds? Why do elements form compounds? Explain why the periodic trends for metal and non-metal reactivity are opposites. ...
Does the Bohr model predict their spectra accurately? Would you expect their line spectra to be identical? Explain. Using the Bohr atomic model, explain to a 10-year-old how spectral emission and absorption lines are created...