Elements
Ions and Isotopes
Average Atomic Mass
Electron Configurations
History of the Atom
100
This is the letter that represents the element Nitrogen
What is N?
100
These particles have a negative charge.
What are electrons?
100
These are the two particles one adds together to calculate an atoms mass.
What is protons and neutrons?
100
This is the amount of electrons that can fit in the third shell
What is 18?
100
Erwin Schrödinger said these particles behaved like waves.
What are electrons?
200
This element is represented by the symbol Kr.
What is Krypton?
200
This particle is different in two isotopes of same element
What is neutrons?
200
These are the two numbers I subtract to get the total number of neutrons.
What is Mass # - Atomic #?
200
This is the state of the atom that is located on the periodic table.
What is the ground state?
200
This scientist was the first to think of atoms as hard indivisible spheres.
Who is John Dalton?
300
The name of this element has an atomic number of 22
What is Titanium?
300
This is the difference in the number of neutrons between Ti-45 and Ti-50
What is 5?
300
This is the rounded average atomic mass of Ga.
What is 70amu?
300
This is the amount of kernel electrons in Cl.
What is 10?
300
Neils Bohr said that the atom had this type of model due to his experiment with lasers and photons being absorbed and emitting light at different energy levels.
What is the planetary model?
400
This element has 55 electrons as a neutral atom.
What is Cesium?
400
This is the charge of an ion that has 14 protons, 14 neutrons, and 17 electrons.
What is -3?
400
This is the average atomic mass of Selenium (Se)? (Use all significant figures)
What is 78.96amu?
400
This excited electron configuration 2-8-15-3 is possible for this element
What is nickel?
400
This scientist came up with this famous plum pudding model of the atom
Who is JJ Thompson?
500
This element has 22 neutrons based on the periodic table.
What is Argon?
500
This is the amount of electrons in this ions 2nd shell.
What is 0?
500
80% 127I, 17% 126I, 3% 128I -This is the numerical set up for calculating the average atomic mass for Iodine.
What is (0.80)127 + (0.17)126 + (0.03)128?
500
This is the electron configuration for a Potassium Ion (K+1)
What is 2-8-8?
500
These particles were used in the gold foil experiment conducted by Ernest Rutherford
What are alpha particles?