Answer:
The wavelength of the light emitted by a hydrogen atom for the given transition is 2166 nm.
Explanation:
The energy of nth energy levels of the H atom is given as:
Energy of the seventh energy level =
Energy of the seventh energy level =
Energy of the light emitted will be equal to the energy difference of the both levels.
Wavelength corresponding t
Answer:
There are 5 numbers
Explanation:
First, the number must be a whole number and divisible by 4.
20^2 is 400.
And there are 4, 8, 12, 16 ,20; 5 number divisible by 4.
23^2 is already 529.
The next number divisible by 4 is 24 which is over 500.
So there are 5 numbers. They are 16, 64, 144, 256, 400.
They have diffrent masses
Answer: the black and yellow with high handle - positive ; white and blue - positive ; red and black - negative
Explanation:
