The one whose molar mass is smaller than sodium.
Fluorine is 19 g
Chlorine= 35.5 g
Bromine= 80 g
so in sodium fluoride, the percent of sodium is the largest.
According to the research, scientific observations are important because every experiment begins with observations.
<h3>What are observations?</h3>
It consists of receiving knowledge of the outside world through our senses, it means that we naturally make observations about the world around us and the first step proposed by the scientific method.
Scientific observation, on the other hand, refers to the process of detailing any phenomenon of nature with analytical intent, usually later replicated in a laboratory (experimentation) or controlled environment.
Similarly, there are qualitative observations that are based on the senses, which are generally more subjective, while quantitative observations are more objective, focusing mainly on numbers, for example "the flower has five petals" is a quantitative observation.
Therefore, we can conclude that according to the context, scientific observations are important because every experiment begins with observations.
Learn more about scientific observations here: brainly.com/question/24071808
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The energy of the photons is
<h3>Energy of Photons</h3>
The formula for calculating the energy of photons is expressed as:
where
- h is the Plank constant
- c is the speed of light
- λ is the wavelength
Substitute the values into the formula to have:
Hence the energy of the photons is
Learn more on energy of photons here; brainly.com/question/7464909
The answer to this problem is CaBr2