Answer:
-3.4 eV ()
Explanation:
In a hydrogen atom, the energy of an electron is given by:
where
n is the principal quantum number
For an electron in the 2s orbital,
n = 2
So substituting this value into the formula, we find
And converting this into Joules, we have
Answer:
its false
Explanation:
since the penny is thrown straight up its not going to move forwad with you and the bus since it has no forces pushing on it. If the bus wasn't moving it would land back on your hand
The electrical charge of an election is negative!
One electron<span> itself has a negative </span>charge<span> of 1.6021766208 × 10 </span>−19<span> coulomb.
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Weight equals mass multiplied by the acceleration due to gravity.