Sub Atomic Particles
This particle determines the elements' identity
What is the Proton?
What did Dalton believe was smaller than the atom?
Trick question: Nothing
A model conveys the concept that Instead of knowing an electron’s exact location, we can describe the areas where it is most likely to be found.
What is Schrödinger’s model?
The difference between an atoms mass and proton number.
what is the number of neutrons?
how many shells would an atom with 67 electrons have?
what is 6 shells
The locations of Protons and Neutrons
What is the nucleus?
The major new idea did Thomson introduce when compared to Daltons solid sphere model?
What is the Atom contains smaller negatively charged particles.
An electrons lowers itself from a higher energy state to a lower energy state and emits one of these.
(think neon lights)
What is a Photon (light)
Adding up the total amount of protons and neutrons finds this
What is the Atomic mass
How many electrons does an anion of cobalt (Co) have?
> 27 electrons (more than 27)
An atom with a different number of neutrons compared to its most common species.
What is an Isotope?
Why did Bohr believe Electrons could remain orbiting around the nucleus without continuously falling in.
electrons can exist in specific energy levels (shells) without emitting energy
(The electron must occupy a space and have an energy level.)
What was the evidence that convince rutherford that there was a nucleus to the center of atom and it was mostly empty space?
what was the small number of alpha particles were deflected through very large angles or bounced off a solid part of the atom, the rest went straight through the atom.
What is different in an isotope
A different mass number, subsequently the number of neutrons are different.
These subatomic particles are responsible for creating ions to react and make molecules?
What are electrons
An atom contains: 47 protons, 61 neutrons, and 47 electrons
What is the mass number?
what is 108 AMU
A cathode ray is observed moving away from a negatively charged plate and toward a positively charged plate.
what does this tell us about the ray?
Cathode rays are made of negatively charged sub atomic particles called electrons.
the biggest new idea introduced by Rutherford when comparing it tp Thomson “plum pudding” model
what is most of the mass is concentrated into the very dense center of the atom called the "nucleus"
How are Uranium-235 and Uranium-238 different
Uranium-238 has 3 more neutrons than Uranium-235
these two particles come together and we calculate their different to solve for our charge
What are Protons and Electrons?
An atom contains: X protons, 9 neutrons, and 10 electrons, and a charge of -2
What is the hyphen notation of this atom?
what is Oxygen-17 (-2)
Draw the correct order of each of the historical atomic model, highlighting the different atoms and which models discovered them. (Dalton -> Schrodinger)
Dalton -> Thomson -> Rutherford -> Bohr -> Schrodinger
Rutherford’s nuclear model set the foundation for Bohr’s planetary model by...
It introduced the nucleus, which Bohr built upon with structured electron orbits
How many neutrons are in a negative ion of chlorine
what are 20 neutrons
draw the nuclear notation of a tungsten isotope with 9 extra electrons.
symbol: W
Charge: -9
Mass #: 184
Atomic #: 74