Atomic Theory
Electron configuration / Orbital diagram
Define
Atomic Models
Scientists
100
John dalton improved on Democritus's previous ideas of the atom, what did he do that Democritus did not.
What is experimentation?
100
Write the abbreviated electron configuration for sodium
[Ne]3s2
100
Define Atom
What is the smallest object that retains the properties of an element?
Contains protons neutrons and electrons.
100
The name of this atomic model.
What is the Bowling ball model ?
100
This person discovered the electron
Who is JJ Thompson?
200
One similarity and one difference between the quantum mechanical model and the bohr model.
Both have energy levels associated with electrons, higher energy levels are located farther away from the nucleus of the atom
Both models allow electrons to jump energy levels and release a photon of light
Bohr model assigns electrons orbit in fixed line, where QMM is a probability cloud.
Quantum mechanical model is a mathematical approach.
200
Write the unabbreviated electron configuration for Bromine
What is
1s22s22p63s23p64s23d104p5
200
Define Isotope
What is two or more atoms that have the same atomic number (the same number of protons) but a different number of neutrons.
Ex: Carbon- 12 , Carbon-13, Carbon 14
200
The name of this atomic model.
What is plum-pudding/ Blueberry muffin?
200
This person is accredited for discovering the positively charged nucleus.
Who is Earnest Rutherford?
300
This person conducted the gold foil experiment
Who is Earnest Rutherford.
300
What is the electron configuration for Silver ?
What is
1s22s22p63s23p64s23d104p65s24d9
300
Define orbital and give the shapes of the main orbitals.
What is a mathematical function describing the location and wave-like behavior of an electron in an atom. This function can be used to calculate the probability of finding any electron of an atom in any specific region around the atom's nucleus.
s- Sphere
P - Dumbell
d- Cloverleaf
300
The name of this atomic model
What is Planetary model,
or
Orbital model ?
300
This person created the first atomic theory
Who is John Dalton?
400
These TWO parts of John daltons theory were disproven.
What is the atom is indivisible and indestructible ?
What is the atoms of the same element are the same in mass and other properties?
400
Fill out this orbital diagram for oxygen
400
Define average atomic mass,
What is an average of all of the naturally occuring masses from their corresponding isotopes.
400
The name of this atomic model
What is Bohr's model?
400
This person discovered Neutrons
Who is James Chadwick ?
500
Why can you use line spectrum like the one below to identify an element.
Colors represent the wavelengths associated with the energy level of electrons in each element. Photons of light are emitted after electrons are excited and move energy levels.
500
Fill out this orbital diagram for Chlorine
500
!!!!!Daily double!!!!!
Hydrogen naturally occurs in three isotopes; Hydrogen-1, Hydrogen-2, Hydrogen-3.
Masses
Hydrogen-1: 1.0078 grams
Hydrogen-2: 2.0141 grams
Hydrogen-3: 3.0160 grams
If you had to guess the approximate percentages of these naturally occurring isotopes based off of hydrogens average atomic mass on the periodic table, What would they be ?
Hydrogen-1: 100% ( Technically, 99.98%)
Hydrogen-2: 0%
Hydrogen-3: 0%
500
The name of this atomic model
What is quantum mechanical model?
500
This scientist was the first to propose the atom as the smallest indivisible piece of matter.
Who is Dalton?