Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
McC 8 Chem Ch 2 & 5
| Chemistry Terms | Definitions |
|---|---|
| Fluid | A fluid is matter that can flow such as a gas or liquid |
| Surface Tension | The attractive forces acting on the particles on the surface of a liquid |
| Temperature | The average kinetic energy of the individual particles of a substance |
| Kinetic Energy | Energy of Motion |
| crystalline solid | Solids in which the particles are arranged in a repeating, three-dimensional pattern |
| amorphous solid | These solids consist of large particles in a random arrangement |
| Density | The measure of compactness or how much mass is in a particular volume |
| Pressure | The force exerted on a surface divided by the total area over which the force is exerted ----- Pressure = Force / Area |
| Atomic number | the number of protons in the nucleus |
| Atomic Mass (Mass Number) | the number of protons + the number of neutrons in the nucleus |
| Isotope | atoms of the same element that have the same number of protons and a different number of neutrons |
| Sublimation | process by which a solid changes into a gas without passing through the liquid phase, gaining energy |
| Ion | atoms of the same element that have the same number of protons but a different number of electrons |
| Charles' Law | direct relationship between temperature and pressure |
| Boyle's Law | Inverse relationship between volume and pressure |
| Subatomic Particle | particles that make up an atom |
| Nucleus | central region of an atom, contains protons and neutrons, very dense |
| Electron Cloud | area surrounding the nucleus of the atom, contains the electrons located in energy levels |
| Aristotle | 4 elements: Earth, Fire, Water & Air |
| Democritus | atoms cannot be further divided |
| John Dalton | all atoms of the same element are alike, an atom is uniform throughout |
| JJ Thomson | electrons (embedded in a positive sphere) |
| Ernest Rutherford | nucleus (positive charge located here) |
| Neils Bohr | energy levels |
| Solid Phase of Matter | particles vibrate in place, definite volume, definite shape, low energy state |
| Liquid Phase of Matter | Particles are free flowing, no definite shape, definite volume |
| Gas Phase of Matter | Particles move to take up all available space, no definite shape or volume, high energy state |
| Thermal Energy | total energy of all particles in a sample of matter |
| Specific Heat | the amount of heat needed to raise the temperature of 1 gram of a substance 1 degree C |
| Heat | movement of energy from a substance of higher temperature to one at lower temperture |
| Viscosity | resistance to flow of a liquid |
| Plasma State of Matter | Super-heated gas,highest energy,4th state of matter, found in lightning, fluorescent and neon lights, stars |
| Bose-Einstein State of Matter | Extremely cold, very slow moving, 5th state of matter, created in 1995 |
| Deposition | process by which gas changes directly to a solid without passing through the liquid phase, losing energy |
| Vaporization | process by which liquid changes to a gas, gaining energy |
| Condensation | process by which a gas changes to a liquid, losing energy |
| Freezing | process by which a liquid changes into a solid, losing energy |
| Melting | process by which a solid changes into a liquid, gaining energy |
Created by:
MCJH
Popular Science sets