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RTE 1418 Week 1
RTE Week 1
| Question | Answer |
|---|---|
| Has mass and occupies space measured in kilo's made up of atoms and molecules. | Matter |
| Is the force used to do work can exist in several forms, measured in joules or electron volts | Energy |
| States of matter | Solid, liquid, gas |
| Energy forms | Electrical, thermal, nuclear, electromagnetic, chemical, mechanical |
| Two or more substances combined | Mixtures |
| Smallest particle of a simple substance | The elements |
| Smallest particle of a complex substance | The compound |
| Developed the periodic table of elements | Mendeleev |
| Small, dense center. Contains the nucleons protons and neutrons | Nucleus |
| Orbit the nucleus | Electrons |
| Made up of quarks | Protons and neutrons |
| Links quantum physics and relativity | M theory (sting theory) |
| Positive charge | Proton |
| Neutral charge | Neutron |
| Negative charge | Electron |
| Maintained through equal number of protons and electrons | Electrical stability |
| Distinguishes elements by number of protons contained in nucleus | Atomic number (Z#) |
| Z# | Atomic number |
| change the Z# | Change the element |
| The removal of an electron results in the ____ of the atom | ionization |
| An ____ photon can interact with an electron and eject it from an atom | X-ray |
| Concentrated in nucleus | Atomic Mass |
| Mass of a ____ is 1836 times greater than an electron. | Proton |
| Mass of a neutron is ___ times greater than an electron | 1838 |
| Atomic mass number | A# |
| Neglects the mass of an atom's electrons | Atomic mass number |
| Defines the location where an electron might be at any given time | The orbital |
| Electron capacity | 2(n)2 |
| Shells | K, L, M, N, O, P, Q |
| Unit: electron volts | eV |
| Energy of one electron when accelerated by one volt | Electron volts (eV) |
| Listed in ascending Z# order | Periodic table of Elements |
| Periodic table: indicate elements have the same number of electrons shells | Horizontal periods |
| Periodic table: have the same number of electrons in the outer (valence) shell | Vertical groups |
| Chemical combing characteristic describes how an atom will bond with other atoms | Valence |
| An atom never has more than eight electrons in its outer shell | Octet rule |
| An atom with eight electrons in its outer shell is | chemically stable (inert) |
| the ability to do work | Energy |
| Physicist's definition of work | work=force x distance |
| The action of physical movement | Mechanical energy |
| Two types of mechanical energy | Potential (stored) and kinetic |
| Energy released from a chemical reaction | Chemical energy |
| Results from movement of molecules | Heat Energy (thermal energy) |
| Results from the movement of electrons in a conductor | Electrical energy |
| Obtained by breaking the bonds between the particles within a nucleus | Nuclear energy |
| Combination of electric and magnetic fields traveling through space | Electromagnetic Energy |
| Can travel through a medium or vacuum | EM Radiation |
| Results from acceleration of a charge | Electromagnetic energy |
| Characteristics of EM Radiation | Wavelength, Energy, Frequency |
| Waves are disturbances in a medium | Wave theory |
| Photon energy and frequency are directly related | Particle theory |
| November 8, 1895 | Wihelm Conrad Rontgen discovered x-ray |
| x-ray properties | Penetrating, invisible form of EM radiation, Electrically neutral, releases heat when passing through matter |
| Scores of ionizing radiation ___ mrem per year | 360 mrem |
| Natural radiation | Cosmic, terrestrial, internally deposited |
| Man made radiation | Medical, nuclear testing, power plants, consumer products |
| The atomic mass number of an atom is given by the number of | protons plus neutrons |
| The atomic number is the number of | protons |
| The number of protons in the nucleus is called the | Atomic number |
| How many types of nucleons are there | Two |
Created by:
Joker71
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