Download Lecture 22 11/03/2016

CHEMISTRY 101B
Lecture 22 Clickers
CLICKER QUESTION #1
How many of the following statements about atomic theory
are still believed to be TRUE?
I. All atoms of the same element are identical.
II. Negatively charged particles are embedded in a positively
charged cloud throughout the atom.
III. As verified by Rutherford, only positively charged
particles called protons are found inside the nucleus.
IV. J. J. Thomson provided the first experimental support for
the atom.
A) 0
B) 1
C) 2
D) 3
E) 4
CLICKER QUESTION #1
How many of the following statements about atomic theory
are still believed to be TRUE?
I. All atoms of the same element are identical.
II. Negatively charged particles are embedded in a positively
charged cloud throughout the atom.
III. As verified by Rutherford, only positively charged
particles called protons are found inside the nucleus.
IV. J. J. Thomson provided the first experimental support for
the atom.
A) 0
B) 1
C) 2
D) 3
E) 4
CLICKER QUESTION #2
Why does the pickle (the system) give off light? Choose the
best answer.
A. If you run electricity through anything, it will give off light.
B. When protons are in an excited state due to electricity,
they glow.
C. The pickle contains sodium. The electricity is causing
neutrons inside sodium to move across between the two
forks and thus make it glow.
D. Energy was put into the pickle (by electricity) so it’s
returning back to a lower energy state by releasing light.
CLICKER QUESTION #2
Why does the pickle (the system) give off light? Choose the
best answer.
A. If you run electricity through anything, it will give off light.
B. When protons are in an excited state due to electricity,
they glow.
C. The pickle contains sodium. The electricity is causing
neutrons inside sodium to move across between the two
forks and thus make it glow.
D. Energy was put into the pickle (by electricity) so it’s
returning back to a lower energy state by releasing light.