What would happen if an electron was added to an atom?

Question 2 options:

It would become a different atom.

Its charge would increase by 1

It would add to the mass by 1.

The charge would be reduced by 1.

answer:the increased negative charge puts stress on the electrons already there, causing energy to be released.

Explanation: When electrons are added to an atom, the increased negative charge puts stress on the electrons already there, causing energy to be released. When electrons are removed from an atom, that process requires energy to pull the electron away from the nucleus.

.) the observation by semmelweis that more mothers died of childbed fever when their doctors also worked in the morgue

we need to know the time interval during which the force acts. impulse of force = momentum change