Co,Ni makes cations of different colours. So they make easily identifiable compounds. Elements in the d group make colourful cations.
Q 3. How did the scientists explain the relationship between the colors observed and the structure of the atom?
No, the colors used to represent elements in the periodic table are usually arbitrary and chosen for visual distinction. The actual colors assigned to the elements do not have any meaning or significance in terms of the elements' properties or characteristics. The colors are simply a visual aid to help differentiate between the elements.
The name of the rainbow colours produced from a white light is called the spectrum.
white light
Atomic spectra
Yes
The colors of fireworks are largely the result of the burning of tiny particles of metallic elements.
all the colors
The main purpose of wearing bright colors is to be identifiable in the dark even when the lights are not appropriate
Blue is one of the three primary colors that can't be produced by mixing other colors. The primary colors are red, yellow and blue. Nowadays, blue is synthetically produced.
a
more than 150 colors!
tertiary color
Manufactures preference. They try to make the colors easily identifiable so types do not get mixed.
When a substance is burned, the chemical elements that make it up produce various colors. These are not visible to the naked eye in most cases, although some elements produce rather spectacular effects -- copper's bright green being one example.Spectrography involves burning samples of material, and precise measurement of the colors produced by elements in the material using a spectrograph. Once the elements and their quantities are known, it is a relatively simple matter to determine the kinds of compounds that would have contained them.
Q 3. How did the scientists explain the relationship between the colors observed and the structure of the atom?
white