How does the energy of an electron change when the electron moves closer to the nucleus

2 answers:

5 0

The electrons move around the protons, which are at the center of the atom. How does the energy of an electron change when the electron moves closer to the nucleus? ... When an electron moves from a lower to a higher energy level, theelectron...

Mkey [24]3 years ago

5 0

Answer: Potential energy decreases.

Explanation: As we know that the electrons and nucleus are held together by the electrostatic forces of attraction due to nature of opposite charges of the same.

Thus when electron moves closer to the nucleus, the potential energy of the electron will decrease as the forces of attraction between the electrons and the nucleus will increase thus providing overall stability to the system.

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Whats the answer and how you got it please :-)

marta [7]

For the element chlorine to be "happy", it needs 8 valence electrons meaning it needs 8 electrons on its outer shell. So the answer would be chlorine because it has 7 valence electrons in the picture and it needs one more to be considered stable.

4 0

4 years ago

A sample of iron receives 50 J of heat energy that raises the temperature of the iron to a delta T of 25.0°C. If iron has a spec

svlad2 [7]

Answer: 20 g

Explanation: heat received Q = m c dT

Q= 50J , dT= 25 C anc c= 0.10 J / g C

And m = Q / c dT

6 0

3 years ago

An aqueous solution of acetic acid is found to have the following equilibrium concentrations at 25 C:

yarga [219]

Answer: 1.79 x 10^-5

Explanation: The equilibrium constant of a reaction can be calculated from the quotient of the concentrations of the products over the concentrations of the reactants, with each termed raised to their respective stoichometric coefficients.

For acetic acid, this equilibrium expression is:

$Kc=\frac{[H+] [CH3COO-]}{[CH3COOH]}$

Replacing the equilibrium concentrations given by the exercise into the expression above, the equilibrium constant, Kc will be obtained and it is found to be equal to 1.79 x 10^-5.