This man is credited with being the "father" of modern chemistry?
Who is Dalton?
100
The atom
What is the smallest unit of matter?
100
This element has 1 proton and no neutrons.
What is Hydrogen-1?
100
This particle can be found in the nucleus with a positive charge.
What is a proton?
100
This is the modern model of an atom and shows the probability of where an electron might be located.
What is the wave model?
200
He said that the atom looked like "plum pudding"
Who is JJ Thomson
200
The distribution of electromagnetic radiation released by a substance whose atoms have been excited by heat or radiation.
What is the Emission Spectrum?
200
This element has 6 protons, 7 neutrons and 6 electrons.
What is Carbon-13
200
This particle has a negative charge?
What is an electron?
200
This is the ground state of what element 2-1
What is Lithium?
300
He determined the atom is mostly empty space through the Gold Foil Experiment
Who is Rutherford
300
The lowest energy state or most stable state of an atom, molecule or ion.
What is the Ground State
300
This element has 2 protons, 2 electrons and 2 neutrons.
What is Helium-4?
300
This particle has a neutral charge or no charge.
What is a neutron?
300
This an example of an excited state of what element 2-7-2.
What is Sodium?
400
He was the first one to say electrons can "jump" energy levels.
Who is Bohr
400
Chemical element having the same number of protons in the nucleus, or the same atomic number, but having different numbers of neutrons in the nucleus, or different atomic masses.
What is an isotope?
400
This element has 8 electrons, 8 protons, and 8 neutrons.
What is Oxygen-16?
400
There are referred to as nucleons and make up most of the mass of an element.
What are protons and neutrons?
400
element X is 75% abundance with an atomic mass of 20g and 25% abundance with an atomic mass of 22g. Find the weighted atomic mass.
What is 20.5?
500
He said the atom was indivisible.
Who is Democritus?
500
Refers to an atom, ion or molecule with an electron in a higher than normal energy level than its ground state.
What is the excited state?
500
This element has 1 proton, 1 neutron, and 1 electron.
What is Hydrogen-2?
500
These particles have almost no mass.
What are electrons?
500
Compare the energy of electrons in the inner energy level, to electrons in the outer energy level.