Answer:
Acceleration,
Explanation:
Given that,
Electric field strength, 
Mass of the electron, 
Charge on electron, 
Let a is the acceleration experienced by an electron. It can be calculated as :




Hence, this is the required solution.
Answer:
The energy of the electron in a helium ion is 
Explanation:
Given that,
Charge = +1
Value of n = 4
Suppose 
We need to calculate the energy of the electron in a helium ion
Using formula of energy

Put the value into the formula


Hence, The energy of the electron in a helium ion is 
Deci, Centi, then Nano is the correct order from largest to smallest
Answer:
A. the place that piece of with a larger piece
Explanation:
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