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**Question:** How much work will it take to remove
one electron from a hydrogen atom ( assume that we remove it such
that it ends up far away from the atom)? The typical distance
between an electron from the proton in this atom is about 0.1
nanometer. Express your answer in both Joules and in
electron-Volts

**Question:** Same question but for removing 1
proton from the nucleus of an alpha-particle (check out what an
alpha-particle is on Wiki). Assume that the two protons are at a
distance of about 1 femtometer apart from each other. Express your
answer in both Joules, and electron-Volts.

**Question:** Suppose you are shooting one proton
to smash with another proton. Initially, the two protons are
infinitely far apart. What minimal velocity is necessary for the
proton-proton distance to reach 1 femtometer. Assume the other
proton stays at rest all the time.

Answer #1

1.8 [3pt] How many electrons should we transfer from Earth to
Sun in order to match the gravity force between the two? Suppose we
take those electrons from a cube-shape piece of Al, one electron
per atom. What would be the size of the cube?
1.8 ANSWER
1.9 [2pt] How much work will it take to remove one electron from
a hydrogen atom (assume that we remove it such that it ends up far
away from the atom). The typical...

Question 1 In this question we undertake the Hydrogen Atom Model,
developed in 1913 by Niels Bohr. a) Write the electric force
reigning between the proton and the electron, in the hydrogen atom,
in CGS system. Then equate this force, with the force expressed in
terms of mass and acceleration, to come up with Bohr's equation of
motion. Suppose that the electron orbit, around the proton, is
circular. Use the following symbols, throughout. e: proton's or
electron's charge intensity(4.8x 10-8...

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Question 411 pts
When an electron is transferred from one atom
to another, and the two atoms are then electrically attracted to
one another, a(n) ________________ bond is formed.
ionic
kinetic
covalent
hydrogen
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Question 421 pts
Changing the number of ____________ of an atom would change the
chemical properties of the atom.
neutrons
protons
electrons
electron shells
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Question 431 pts
Forming molecules and breaking down molecules in biological
organisms usually requires...

1.) Which transition in a hydrogen atom would
emit the photon of greatest frequency?
n = 35 to n = 2
n= 6 to n = 2
n = 12 to n = 6
n = 1 to n = 4
n = 2 to n = 9
n = 3 to n = 1
***NOT n=35 to n=2***
2.) Which transition in a hydrogen atom would
absorb the photon of greatest frequency?
n = 3 to n = 1...

1.) Which transition in a hydrogen atom would
emit the photon of greatest frequency?
n = 35 to n = 2
n= 6 to n =
2
n = 12 to n =
6
n = 1 to n = 4
n = 2 to n = 9
n = 3 to n = 1
***NOT n=35 to n=2***
2.) Which transition in a hydrogen atom would
absorb the photon of greatest frequency?
n = 3 to n = 1...

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