The sky has a blue colour because of the atmosphere, it holds back the red tinted light because it has an too short wavelength to reach your eye. Blue tinted light has, in contrary of the red tinted light, a long wavelength and is being reflected into your eye.
The monovalent copper emit in flame a blue radiation.
Cu
heated of the element heat absorbed by the sample amount of energy added to the sample energy difference between the ground state and exited states of an element.
copper
Different elements produce different colors when heated. Here are a few examples: Lithium produces a red flame Sodium produces a yellow flame Copper produces a blue-green flame Potassium produces a lilac flame Barium produces a pale green flame
When the flame takes on the color of blue this means that the fire is at the highest temperature. The fire is at its hottest and may take lesser time to heat whatever needs to be heated.
Copper Chloride (CuCI) makes up the blue element in Fireworks
The color is red.
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Potassium
Green/Blue
heated of the element heat absorbed by the sample amount of energy added to the sample energy difference between the ground state and exited states of an element.
Blue is already a primary color. There are no two colors that can make blue.
copper
copper
The color of the light emitted by an element heated within a flame is a physical characteristic, but this particular physical characteristic is itself determined by a chemical characteristic: the distribution of electron energy levels within the element.
Different elements produce different colors when heated. Here are a few examples: Lithium produces a red flame Sodium produces a yellow flame Copper produces a blue-green flame Potassium produces a lilac flame Barium produces a pale green flame
To set the border colour for all sides of an element, just use the border-color property. For instance, if you wanted the colour of the border on each side of an element to be blue, just put: border-color: blue;
depends on the element