Which Scientist?
Which scientist came up with the four postulates?
John Dalton
True or False: The Periodic Table is arranged in order of increasing atomic mass
How many protons are in Carbon?
6
Which particles are positive?
Alpha
Which scientist coined the term "atomos"
Democritus
Which element has an atomic number of 1?
Hydrogen
How many electrons are in Arsenic?
33
What is radiation?
Transmission or shedding of energy off of elements
Describe the Gold Foil Experiment
Shot electrons at gold foil; expected them to pass through; instead they bounced back, proving the electron was mostly empty space
Which scientist came up with the Plum Pudding model?
J.J. Thomson
Which element has an atomic mumber of 39?
How do I find the number of neutrons?
Atomic Mass - Atomic Number
Which particles have a neutral charge?
Gamma (Y)
What is the nuclear model?
A nucleus with protons and neutrons and outer rings with electrons
What experiment did Ernest Rutherford complete?
Gold Foil Experiment
What element has an atomic number of 15.999?
Oxygen
How many neutrons are in Sulfur?
16
Which particles have a negative charge?
Beta Particles
Who came up with the nuclear model?
Niels Bohr
What did the Gold Foil experiment prove?
That atoms are mostly empty space with a positive nucleus and a negative electron cloud around it
Which element has an atomic symbol of Ag?
Silver
How many neutrons are in Cadmium?
64
Which particles are attracted to the positive plates?
Beta Particles
Are all of Dalton's ideas correct?
No!