Set: 8th Grade Midterm Science Exam

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All 44 Terms

Term Definition
sodium Na; alkali metals, a silvery soft waxy metallic element of the alkali metal group
copper Cu; coinage metal, a ductile malleable reddish-brown corrosion-resistant diamagnetic metallic element
magnesium Mg; alkali metal, a light silver-white ductile bivalent metallic element
calcium Ca; necessary for bone growth
gold Au; coinage metal, a soft yellow malleable ductile (trivalent and univalent) metallic element
iron Fe; iron triad, magnetic, a heavy ductile magnetic metallic element
nitrogen N, a common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas
helium He; noble gas, a very light colorless element that is one of the six inert gasses
hydrogen H, a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas
lithium Li, a soft silver-white univalent element of the alkali metal group
barium Ba; used in digestive medical tests to see stomach and intestines, a soft silvery metallic element of the alkali earth group
silicon Si, used in computer chips, it is a semiconductor, essential for all life on the planet
carbon C, building block of all living creatures
tin Sn; used to be used in braces, and cans
lead Pb, comes from the latin plumbus, hazardous to humans
sulfur S, yellow color, dull luster, smells
oxygen O, A colorless, odorless, tasteless gas essential to respiration in animals
fluorine F; part of the halogens, found in toothpaste
chlorine Cl; found in salt
mercury Hg, a heavy silvery toxic univalent and bivalent metallic element
silver Ag;, a soft white precious univalent metallic element having the highest electrical and thermal conductivity of any metal
phosphorus P, A mineral that is essential in bone formation, muscle contraction, and many other functions
argon Ar, a colorless and odorless inert gas
potassium K, a light soft silver-white metallic element of the alkali metal group
iodine I, a nonmetallic element belonging to the halogens
alkali metals Silvery solids with low densities and low melting points found in Group 1
alloy A mixture of two or more elements,one of which is a metal
ductile Capable of being drawn out, as into wire or a thread.
atomic number Basis for arranging elements in modern periodic table
actinides Radioactive, unstable elements in transition metals
group A vertical row of elements in the periodic table, elements in group share chemical properties, also called a family
halogens Group of elements that form salt
hydrogen Only nonmetal in group 1
lanthanides Series of elements that are sometimes called rare earth elements
malleable Capable of being shaped or bent or drawn out
metals They are shiny, ductile, malleable, good conductors of thermal energy
metalloids Have characteristics of both metals and nonmetals
noble gases These elements do NOT react with any other elements.
nonmetals Not malleable, not ductile, not shiny, poor conductors of thermal energy and electric current,
periods Horizontal rows of periodic table; within period, elements near each other have similar properties
mass number The total number of protons and neutrons in an atom's nucleus
representative elements A group in the periodic table which includes metals, metalloids, and nonmetals
semiconductors Elements that show moderate electrical conductivity
transition elements Elements in Groups 3-12 of the periodic table

Set Information

Terms 44
Creator sense329
Created November 12, 2007
Group St. Gerard 8th Grade 2007-08
Tags st, grade, 8th, gerard
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Description

periodic table of elements

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Most Missed Words

  1. representative elements → A group in the periodic table which includes metals, metalloids, and nonmetals - 9 misses
  2. lanthanides → Series of elements that are sometimes called rare earth elements - 8 misses
  3. actinides → Radioactive, unstable elements in transition metals - 7 misses
  4. fluorine → F; part of the halogens, found in toothpaste - 6 misses
  5. chlorine → Cl; found in salt - 4 misses
  6. phosphorus → P, A mineral that is essential in bone formation, muscle contraction, and many other functions - 4 misses
  7. alkali metals → Silvery solids with low densities and low melting points found in Group 1 - 4 misses