Answer:
Fluorine has a higher electronegativity than carbon
Explanation:
Electronegativity trend
-As you go from left to right across the periodic table, the electronegativity increases.
-As you go from top to bottom, the electronegativity decreases.
-We know that both carbon and fluorine are in the same energy level or period 2. However, Carbon is in group 14, which has 4 valence electrons, while fluorine is in group 17, which has 7 valence electrons. Therefore, fluorine has a higher electronegativity because fluorine is desperately wanted to gain 1 more valence electron to become stable (octet rule).
<u>Answer:</u> The photon was emitted from the 4th energy level
<u>Explanation:</u>
To calculate the wavelength of light, we use the equation:
where,
= wavelength of the light
c = speed of light = 
= frequency of light = 
Putting the values in above equation, we get:
To calculate the initial level, we use the equation given by Rydberg's equation, which is:
where,
= Wavelength of radiation 
= Rydberg's Constant = 
= Final energy level = 1
= Initial energy level = ?
Putting the values, in above equation, we get
Hence, the photon was emitted from the 4th energy level
Answer:
Water can inmolecular hydrogen bonds
Answer:
What is the best definition of "vehicle of contamination"?
-A preventive vaccine
-Any source of biological -contamination
An ambulance
-A food truck
