Forces in an atom. The particles in the nucleus of an atom are approximately 10 −16 m apart, while the electrons in an atom are about 10 −10 m from the nucleus, (a) Calculate the electrical repulsion between two protons in a nucleus if they are 1.00 × 10 −15 m apart. If you were holding these protons, do you think you could feel the effect of this force? How many pounds would the force be? (b) Calculate the electrical attraction that a proton in a nucleus exerts on an orbiting electron if the two particles are 1.00 × 10 −10 m apart. If you were holding the electron, do you think you could feel the effect of this force?
Forces in an atom. The particles in the nucleus of an atom are approximately 10 −16 m apart, while the electrons in an atom are about 10 −10 m from the nucleus, (a) Calculate the electrical repulsion between two protons in a nucleus if they are 1.00 × 10 −15 m apart. If you were holding these protons, do you think you could feel the effect of this force? How many pounds would the force be? (b) Calculate the electrical attraction that a proton in a nucleus exerts on an orbiting electron if the two particles are 1.00 × 10 −10 m apart. If you were holding the electron, do you think you could feel the effect of this force?
Forces in an atom. The particles in the nucleus of an atom are approximately 10−16 m apart, while the electrons in an atom are about 10−10 m from the nucleus, (a) Calculate the electrical repulsion between two protons in a nucleus if they are 1.00 × 10−15 m apart. If you were holding these protons, do you think you could feel the effect of this force? How many pounds would the force be? (b) Calculate the electrical attraction that a proton in a nucleus exerts on an orbiting electron if the two particles are 1.00 × 10−10 m apart. If you were holding the electron, do you think you could feel the effect of this force?
Forces in an atom. The particles in the nucleus of an atom are approximately 10- 15 m apart, while the electrons in an atom are about 10- 10 m from the nucleus. (a) Calculate the electrical repulsion between two protons in a nucleus if they are 1.00 x 10- 15 m apart. If you were holding these protons, do you think you could feel the effect of this force? How many pounds would the force be? (b)
Calculate the electrical attraction that a proton in a nucleus exerts on an orbiting electron if the two particles are 1.00 x 10- 10 m apart. If you were holding the electron, do you think you could feel the effect of this force?
(a) Calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 8.0 g. Silver has 47 electrons per atom, and its molar mass is 107.87 g/mol.
236000000000 X
You can approach this problem as a unit conversion exercise in that you need to convert grams of silver to electrons using the information given in the problem as conversion factors
(b) Imagine adding electrons to the pin until the negative charge has the very large value 1.00 mC. How many electrons are added for every 109 electrons already present?
X
5.30
Note that 109 is one billion. It might help to rewrite your answer from part (a) as the number of billions of electrons.
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Recall Coulomb's Law, which says that
|?|=?|?1?2|?2|F|=k|Q1Q2|r2 , where |F| is the size of the electrical force, the Qi are charges, r is the distance between the charges, and k is a constant. The units of k can be written as
Ma Lb Tc Qd.
What is b?
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