Combined AS/PT Set
This is the combined Atomic Structure/Periodic Table set that you will be quizzed on, on Tuesday, January 15th.
Terms
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- Subatomic
- A term that means 'smaller than an atom'.
- Transmutation
- The process that occurs when an atom undergoes radioactive decay.
- rare earth elements
- The 'inner-most' elements, which are usually placed at the bottom of the periodic table.
- Atomic Number
- The number of protons in an atom.
- Electron Cloud
- Empty space around the nucleus of an atom where electrons travel
- alkaline earth metals
- The name of the family of elements in Group 2.
- Nucleus
- The center of an atom.
- malleable
- The ability to be made into thin sheets.
- Proton
- A positively charged subatomic particle.
- period
- A row of elements in the periodic table whose properties change gradually and predictably.
- Particle
- a very small piece of something
- transition elements
- Elements in the middle of the periodic table, in groups 3-12.
- Isotopes
- The term given to atoms of the same element that have different numbers of neutrons.
- Neutron
- A subatomic particle with no charge
- metalloid
- An element that shares some characteristics of metals and some of nonmetals.
- luster
- The ability to reflect light.
- the iron triad
- The name given to iron, cobalt, and nickel, collectively.
- Element
- A form of matter that cannot be separated into simpler substances by ordinary chemical methods.
- Electron
- A negatively charged subatomic particle.
- alkali metals
- The name of the family of elements in Group 1.
- ductile
- The ability to be stretched into wires.
- Quarks
- The particles that make up protons and neutrons.
- Alpha Particle
- The term given to a particle consisting of two neutrons and two electrons, that comes from radioactive decay.
- Decay
- To break into smaller pieces.
- Atoms
- The smallest unit of an element.
- Rutherford
- The man who discovered the nucleus of an atom.
- Thomson
- The man who discovered the electron.
- Electron Cloud Model
- The current model for atomic structure.
- Half-life
- In atoms that are radioactive, the time required for half of the element to decay.
- Bohr
- The man who discovered electron energy levels.
- Beta Particle
- The term given to 'loose' electrons that come from radioactive decay.
- Mass Number
- The total number of protons and neutrons in the nucleus of an atom.
- halogens
- The name of the family of elements in Group 17.
- metal
- An element that has luster, is a good conductor of heat and electricity, is malleable, and is ductile.
- Gold Foil Experiment
- The experiment conducted by Ernest Rutherford to discover the nucleus of an atom.
- actinide series
- The 15 elements including and immediately following actinium.
- Cathode Ray Tube
- A Piece of Equipment used by Thomson to discover the electron.
- lanthanide series
- The 15 elements including and immediately following lanthanum.
- noble gases
- The name of the family of elements in Group 18.
- nonmetals
- Elements which are not ductile, not malleable, do not have luster, and are poor conductors of electricity.