3) Answer is: because elements have different emmision spectrum.
Emission spectrum of a chemical element is the spectrum of frequencies emitted due to an atom making a transition from a high energy state to a lower energy state. Each element's emission spectrum is unique.
4) Answer is: lithium chloride and sodium chloride do not have similar colors.
Lithium ion has red and sodium ion has yellow emission spectrum.
5) Answer is: because metals have valence electrons in different energy shells.
Each transition has a specific energy difference.
6) Answer is: salts of alkaline and earth alkaline metals.
For example barium chloride gives green light.
Remember that <span>λ, or wavelength, is proportional to (1/f), where f=frequency. That means that wavelength and frequency are inversely related. When one goes up, the other goes down, and vice versa. That means answers C and D are incorrect because those answers have wavelength and frequency in a direct relationship.
Radiant energy is directly proportional to frequency. When frequency increases, radiant energy increases. That means A) </span><span>As wavelength decreases, radiant energy and frequency increase is the correct answer.</span>
Answer:
Explanation:
Hello,
In this case, since the first step is to write the properly balanced chemical reaction:
We can see that given the 0.200 g of P4S3 (molar mass 220 g/mol) the mole ratio between it and SO2 (molar mass 64 g/mol) is 1:3, therefore, the produced mass of SO2 turns out:
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<span>A carbon - 12 atom and a
regular carbon atom would have the same number of protons which is 6. So a
carbon - 12 atom would have 6 protons. Both, however, would differ in the
number of neutrons. Carbon - 12 atom has 6 neutrons. To determine the mass
defect of a carbon - 12 atom, we have to add the total mass of protons and the
total mass of neutrons and subtract the known mass of a carbon - 12 atom. That
would be like this.<span>
6
(1.00728 amu) + 6 (1.00866 amu) = x
<span>6.04368
amu<span> + 6.05196 amu = x</span></span>
12.09564
amu = x
Then
subtract it with 12 amu to get the defect mass
12.09564
amu - 12.00000 amu = y
0.09564
amu = y
<span>So the
defect mass would be 0.09564 amu.</span></span></span>
