Atom Particles Atom Models Atom Scientists Isotopes Nuclear
- Slides: 51
Atom Particles Atom Models Atom Scientists Isotopes Nuclear Chemistry 10 10 10 20 20 20 30 30 30 40 40 40 50 50 50
A formula containing twice as many sodium atoms as oxygen atoms
What is Na 2 O?
The number of protons, neutrons, and electrons in an atom of sulfur-33.
What is 16 protons, 17 neutrons, and 16 electrons?
The complete chemical symbol containing 25 protons, 26 neutrons, and 27 electrons.
What is ?
The particle used to distinguish between atoms and ions.
What is an electron?
The particles making up the majority of an atom’s mass.
What are protons and neutrons?
This model is based on the results of the gold foil experiment.
What is the nuclear model of the atom?
Electrons travel in fixed orbits.
What is the planetary model?
The first model describing electrons.
What is the plum pudding model?
The atom was indivisible.
What is the solid sphere model?
Electrons are localized to orbitals.
What is the wave mechanical model?
This scientist first described the idea of the atom.
Who is Democritus?
The scientist who is responsible for the law of definite proportions.
Who is Proust?
The scientist who discovered the neutron.
Who is Chadwick?
The scientist who first identified the “quantum”.
Who is Planck?
The scientist who described quantum numbers.
Who is Schrödinger?
The atomic mass of two isotopes: Cl-35 that has a relative abundance of 75. 78% and Cl-37 that has a relative abundance of 24. 22%.
What is 35. 48 amu?
The average atomic mass of magnesium: 24 Mg (78. 99% abundance), 25 Mg (10. 00% abundance), and 26 Mg.
What is 24. 32 amu?
The amount of 100. 0 g of 207 Po remaining after 17. 4 hours (half-life of 207 Po = 5. 8 hrs).
What is 12. 50 g?
The fraction of an isotope remaining after 21 days if its half-life is 7 days.
What is 0. 125 or 1/8?
The half-life of an isotope that decays from 50. 0 g to 3. 125 g in 30. 0 min.
What is 7. 50 min?
Nucleons.
What are protons and neutrons?
The missing nuclide in the following nuclear equation:
What is ?
This is emitted from radioactive decays without changing the number of protons or neutrons in the original nuclide.
What is a gamma ray?
The type of nuclear energy created by the sun as opposed to the type of nuclear energy produced by nuclear reactors.
What is fusion and fission, respectively?
The type of nuclear decay occurring in very light nuclides
What is positron production?