Atomic Models and Quantum Theory Review

Atomic Models Subatomic Particles IsotopesStructure of the Atom

Row 1, Col 1 Which term did Bohr use when he described the path that electrons move around the nucleus. Orbital

1,2 What is the charge of an electron, neutron, and proton respectively. -1, 0, +1

1,3 Isotopes of the same element differ by the number of ______ they have? Neutrons

1,4 Which subatomic particle(s) make up the atomic nucleus? Protons and Neutrons

2,1 State two characteristics that rutherford discovered about the atomic nucleus. Very dense and it has a positive charge.

2,2 Which two subatomic particles have the same mass? Proton and Neutron

2,3 Thallium has 2 naturally occurring isotopes, Th-206 and Th-208. Which isotope is more abundant? Th-206, since is average atomic mass is amu

2,4 Most of the volume that an atom occupies is space taken up by which subatomic particle(s)? Electrons

3,1 Which subatomic particle did J.J. Thomson discover? The Electron

3,2 Which subatomic particle(s) make up the atomic nucleus? Protons and Neutrons

3,3 Chlorine has two naturally occurring isotopes, Cl-35 and Cl-37. The percent abundance of each isotope is 75.77% and 24.23% respectively. What is the average atomic mass of Chlorine? ( Round your answer to a hundreth of a decimal.) amu

3,4 What is the mass of a proton, neutron, and electron respectively. List the masses in atomic mass units (amu). p + = 1 amu, n 0 = 1 amu, and e - = 1/2000 amu

4,1 Name the Scientist who created the following atomic model; J.J. Thomson

4,2 Name the scientists who discovered the proton, then name the scientist that discovered the neutron. First and last names. Eugen Goldstein and James Chadwick

4,3 List one element from the Periodic Table that has no known isotopes. Tc (Technicium) or Rn (Radon)

4,4 Which pair of words best Describes the atomic nucleus; A.) Light and Fluffy B.) Hard and Dense C.) Positive and Soft D.) Neutral and Dense E.) Negative and Soft B – Hard and Dense

5,1 What is the name of the beam of electrons that Thomson experimented with? Cathode Ray

5,2 What is the name given to an ion that Has lost electrons to form a positive ion? Cation

5,3 Sulfur has three naturally occurring isotopes, S-32, S-33, S-34, and S-36. Their percent abundance is %, 0.76 %, 4.22 %, and %, Respectively. Use this data to calculate The average atomic mass of Sulfur amu

5,4 According to the Electron Cloud Model, where in the atom is the electron density the highest? Closest to the nucleus

Final Jeopardy Calculate the mass of a neutral C-12 atom if a proton and a neutron has a mass of 1.67 x g, and an electron has a mass of 9.11 x g,