Subatomic Particles
Models of Atoms
Atoms and Elements
Observations
Radioactivity
100
These subatomic particles are not located in the nucleus, and possess a negative charge
What are electrons?
100
This model features an negatively charged electron cloud around the nucleus
What is the Present Modern Model?
100
This is shorthand for the writing the name of a chemical
What is the Chemical Symbol?
100
Watching dinosaurs to observe their behavior is what type of observation
What is direct observation?
100
This type of reaction involves the particles of the nucleus
What is nuclear reaction?
200
These subatomic particles are located in the nucleus and possess a positive charge
What are protons?
200
This model was based off of a famous experiment utilizing gold foil, and concluded that the atom is mostly empty space
What is the Rutherford Model?
200
This is a chart that organized elements based on atomic number
What is the Periodic Table?
200
Observing fossils to understand dinosaur behavior is what type of observation?
What is indirect observation?
200
This process is when the atomic nuclei of unstable isotopes release fast-moving particles and energy
What is radioactive decay?
300
The combination of these two subatomic particles determine the mass of an element
What are protons and neutrons?
300
This model portrays atoms as tiny solid balls
What is the Dalton Model?
300
This represents the number of protons in the atom's nucleus
What is atomic number?
300
This is the conclusion you make based on what you observe
What is inference?
300
This type of decay involves the lost of 2 protons and 2 neutrons
What is alpha decay?
400
The charges of the protons, electrons and neutrons combine to make the charge of an atom....
What is neutral?
400
This model portrays an atom as a positively charged sphere with electrons embedded in it
What is the Thompson Model?
400
This is the combination of protons and neutrons in the nucleus
What is the atomic mass?
400
This type of observation utilizes your senses
What is direct observation?
400
This type of decay involves the loss of a neutron and the gain of a proton
What is beta decay?
500
If atoms were the size of a football stadium, and nucleus was a person at the 50 yard line, the seats would be this...
What is the electron cloud?
500
This model proposed that an atom has electrons moving in specific layers or shells rather than randomly
What is the Bohr Model?
500
Atoms of the same element, with different numbers of neutrons
What are isotopes?
500
In Rutherford's famous gold foil experience, his conclusion was based on what type of observation?
What is indirect observation?
500
This type of decay involves no gain or loss of particles, but is the most penetrating
What is gamma radiation?
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