Atomic History
Atomic Models
Nuclear
The Mole
Average Atomic Mass
100
The Greek Philosopher that proposed everything is made of simple particles called "Atmos".
Democritus
100
The number of protons in Chlorine
17
100
This particle:
alpha
100
The number of moles in 34g of Carbon.
SIG FIGS
2.8 mol C
100
An element's average atomic mass units on the periodic table is equivalent to what conversion factor.
grams per mole
200
This Physicist used alpha particles to discover the nucleus of the atom.
Ernest Rutherford
200
Chromium-53 has this many neutrons.
29n
200
This happens to the atomic number of a nucleus that releases a beta particle.
It increases by 1.
200
The number of atoms in 2.0 Moles.
SIG FIGS
1.2x1024 atoms
200
The average atomic mass of a sample containing 50% Carbon-12 and 50% Carbon 14.
ROUND TO HUNDREDTH'S
13.00amu
300
A Nobel prize winning physicist that discovered the wave/particle duality.
Erwin Schrodinger
300
The isotopic notation for the model below:
300
Double Jeopardy!!!!
When this isotope releases an alpha particle, it becomes Radon-222
Radium-226
300
The number of atoms in 55.0g of zinc.
SIG FIGS
5.06x1023 atoms Zn
300
The average atomic mass of the following sample:
ROUND TO HUNDREDTH'S
51.07amu
400
This Russian scientist started organizing elements by atomic mass into a rudimentary periodic table.
Mendeleev
400
The number of protons, neutrons and electrons in the isotope below:
26p, 29n, 23e
400
A free neutron and this isotope are the products of a fusion reaction of these two isotopes:
400
The mass of 3.15x1023 atoms of tungsten.
SIG FIGS
96.2g W
400
The average atomic mass of a sample containing 33 atoms of 65Cu, 81 atoms of 63Cu, and 39 atoms of 67Cu.
ROUND TO HUNDREDTH'S
64.45amu
500
His modern atomic theory states that reactions between particles happen in whole number ratios.
John Dalton
500
The most common isotope of oxygen has 118 neutrons less than this isotope of lead.
Lead-208
500
A free neutron can cause this isotope to fission, releasing Niobium-105 and Cesium-137 and 4 neutrons as daughter products.
Curium-245
500
Double Jeopardy!!!
The total number of electrons in 23.8g of S2- ions.
8.04x1024 electrons
500
The average atomic mass of a sample containing 3.33x1023 atoms of potassium-39, 9.64x1022 atoms of Potassium-40, and 1.24x1024 atoms of potassium-41.
ROUND TO HUNDREDTH'S
40.54amu