Answer:
Sift the mixture to separate the rock from the iron filings, soil and salt.
You can then use a magnet to separate the iron filings from the salt and soil.
Afterwards, you can pour water into the remaining salt- soil mixture. Salt will dissolve but the soil will remain at the bottom of the water.
If you want to separate the salt from the water, you can boil it till all the water evaporates. The only thing that'd be left in the pan is salt.
As Principle Quantum Number is 7, so the number of Azimuthal Quantum Numbers for this energy level is calculated by following formula,
l = n - 1
As, n=7
So,
l = 7 - 1
l = 6
So, n=7 contains 1, 2, 3, 4, 5 and 6 Sub-Shells.
Number of Electrons in Subshells,
Number of electrons in each subshell is calculated by following formula,
2 (2l + 1)
As, l=1 (given),
So, 2 (2(1) + 1)
2 (2 + 1)
2 (3)
6
Result:
The number of electrons in n=7 and l=1 are 6.
Same here this is to much :(
I have not taken Chemistry in a year but I remember that if you look at a periodic table there are certain sections for polar and non polar elements. I dont know if you have learned that yet
Answer:
The wavelength of this light is 780.4 nm.
Explanation:
Given that,
The frequency of laser light,
We need to find the wavelength of this light.
We know that,
Where
is the wavelength of light
So,
So, the wavelength of this light is 780.4 nm.