Chapter 1 Chemical Bonding Flashcards
Who discovered the Indivisible Particle
Dalton
Who discovered the plum pudding model
J.J. Thomson
Who discovered the atomic model
Bohr
Famous experiment Rutherford did
Rutherford’s Goldfoil Experiment
negatively charged electrons
orbit the nucleus. The rest of
the atom is mostly empty
space, and the electrons are
in that space
planetary model
as electrons move in their orbits, they
give up energy. This would cause them
to gradually slow down and move
closer to the nucleus, ultimately
leading to their falling into the nucleus,
resulting in the collapse of atoms.
planetary model
what model states that electrons revolve in specific
shells/orbits around the
nucleus called energy levels.
These energy levels are
quantized and discrete, with
each having its own fixed value,
bohrs model
what model states that the energy of an electron does
not continuously radiate energy,
it can only be changed by
transitioning from one energy
level to another.
bohrs model
k = n ?
1
l = n ?
2
m = n ?
3
n = n ?
4
it would be impossible to
determine the locations and
speed of particles with a
wave-like behavior
uncertainty principle
who proposed the electrons dual nature
louis de broglie
the foundation of the
idea that electrons
behave as both a
particle and a wave
dual nature of an atom
who discovered the quantum mechanical model
erwin shrodinger
Who is the scientist credited with the
discovery of electrons?
Thomson
What do you call the smaller particles that
make up the atom?
subatomic particles
What subatomic particle was involved in the
failure of Rutherford’s Planetary Model?
electrons
What periodic element did Bohr use to
support his model?
hydrogen
In Bohr’s model of hydrogen atom, what will
happen to the electron of hydrogen if it
absorbs energy in discrete amounts?
Jumps to a higher energy level
What was Erwin Schrodinger’s structural
model of atoms called?
Wave Mechanical or
Quantum Mechanical Model
What do you call the idea that states that if
light particles can behave like streams of
particles, then electrons as particles can
possess a wave nature as well?
Dual nature of Electron
In 1913, the Danish physicist Niels Bohr
proposed a model of the atom in which
electrons orbit the nucleus without losing
energy. What did he call the possible orbit of
these electrons?
energy level
