Atomic History | ||
#1 | Scientist whose alpha particle scattering experiment led him to conclude that the nucleus of an atom contains a dense center of positive charge. | Rutherford |
#2 | The first scientist to show that atoms emit negative particles using his cathode ray experiment. | Thomson |
#3 | First to use the term atom. | Democritus |
#4 | Identified the charge on the electron using the Oil Drop Experiment | Milikan |
#5 | Proposed the Law of Conservation of Matter. | Dalton |
Atomic Structure | ||
#1 | What are the three subatomic particles? | protons, neutrons and electrons |
#2 | The sum of protons and neutrons is the | atomic mass |
#3 | The number of protons indicates the identity of the element and the | atomic number |
#4 | Atom with the same number of protons but different number of neutrons | isotope |
#5 | Atom that has gained or lost electrons | ion |
Isotopes, Ions, and Such | ||
#1 | How many electrons are in the outermost energy level of an electrically neutral atom of nitrogen | 5 |
#2 | Explain the difference between C-14 and C-12? | Both have 6 protons; C-12 has 6 neutrons and C-14 has 8 neutrons. |
#3 | The identity of an element depends on its | atomic number |
#4 | Electrons located in the outermost energy level | valence electrons |
#5 | How many electrons can be in a 4f sublevel | 14 |
Radioactivity | ||
#1 | The radioactive particle with the most mass. | alpha particle |
#2 | When a gamma ray is given off during radioactive decay as a | photon |
#3 | The type of radiation that is most penetrating | gamma |
#4 | When Thorium-234 goes through alpha decay what is produced? | Rn-230 |
#5 | When Thorium-234 goes through beta decay and gamma decay what is produced? | Pa-234 and a photon |
Electrons | ||
#1 | What is the electron configuration for He | 1s2 |
#2 | Ions of an element contain a different number of | electrons |
#3 | What is the Noble Gas configuration of Fe | [Ar] 4s2 3d6 |
#4 | High energy photon | gamma ray |
#5 | When an electron jumps from n=5 to n=2 what color light is emitted? | blue light |
Final Question | |