Answer:
The atomic radius of a chemical element is a measure of the size of its atoms, usually the mean or typical distance from the center of the nucleus to the boundary of the surrounding shells of electrons. ... The value of the radius may depend on the atom's state and context.
Explanation:
Answer:
These examples could be written as chemical reactions, but are more generally considered to be endothermic or heat-absorbing processes: Melting ice cubes. Melting solid salts. ... Converting frost to water vapor (melting, boiling, and evaporation, in general, are endothermic processes.
Explanation:
A pure substance would be something containing only one type of molecule while a mixture consists of multiple pure substances.
Answer:
I don't know how to get the answer sorry
Explanation:
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All of the above
Explanation:
Scientists can use spectra analysis of stars to determine:
- Surface temperature of the star
- Core temperature of stars
- Elements in the core of the star
- Elements on the surface of the star
Spectra analysis is the analysis or interpretation of the electromagnetic emissions from a matter.
They are very useful in indirect and descriptive studies of astronomical bodies since it might be very difficult of come in close contact with them.
Emissions spectrum typifies every matter in nature since all bodies emits specific radiations.
Using spectra analysis, scientists can determine the temperature that typifies an emission and the elements that might might be producing such signatures.
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Spectral analysis brainly.com/question/1857156
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