PERIODIC TABLE STUDY GUIDE – Flashcards
Unlock all answers in this set
Unlock answersquestion
Alkali Metal Family
answer
Soft enough to cut with a knife Shiny VERY reactive with other elements K= banana's, Li = battieries
question
Alkaline Metal Family
answer
Harder than alkali family members easy to bend/shape/mold by hand often mixed with Aluminum Hubcaps, boats
question
Transition Metal Family
answer
¨ Most¨ solids at room temperature EXCEPT one liquid = Mercury Excellent conductor of heat and electricity
question
Boron Family
answer
Hard and brittle to the touch Never used purely (used with everything) Al= Aluminum is the most abundant in the earth's crust Detergent, make up
question
Carbon Family
answer
C = Carbon is 2nd most abundant element Si= Silicon is found in sand & glass
question
Nitrogen Family
answer
Phosphorus is found in Fertilizer, match heads, CHEESE, grease removers. Bi=Bismuth=in PEPTO BISMOL
question
Oxygen
answer
O=Oxygen helps digest food S=Sulfur is in fertilizer ¨playing" with others Se = Selenium is in shampoo, egg yolks
question
Halogen Family
answer
NON- metal family Cl= Chlorine help kill bacteria in a pool BUT as a gas is poisonous F=Fluorine help clean teeth Salt Formers
question
Noble Gas Family
answer
Every member is a gas at room temp NON-reactive Chance to be plasma
question
Rare Earth Metals Family
answer
2 subgroups : Lanthanide & Actinide Conductors & electricity Dull grey in finish Many are man-made & radioactive
question
PERIODIC TABLE
answer
useful tool that helps us predict the properties of elements keeps things organized elements arranged by increasing atomic number
question
FAMILY
answer
found in vertical columns in the periodic table each group is numbered elements in same group have similar qualities
question
ATOMIC NUMBER
answer
Number of protons and (same number of) electrons.
question
ATOMIC MASS
answer
Number of protons plus the number of neutrons.
question
METALS
answer
Elements solid at room temperature shiny, malleable, ductile left side of the periodic table conduct heat and electricity
question
NON-METAL
answer
Element tends to be a poor conductor of heat and electric current right side of the periodic table most are gasses and generally have properties opposite of metals.
question
PERIODS
answer
Horizontal rows on periodic table
question
ELEMENT
answer
pure substance made of only one atom separated in nuclear reactions
question
PROTON
answer
subatomic particle has positive charge found in the nucleus of an atom
question
ELECTRON
answer
subatomic particle that has negative charge
question
VALENCE ELECTRONS
answer
number of electrons in the outermost energy level (outer shell of atom) involved in forming bonds to other atoms
question
NEUTRON
answer
subatomic particle has no charge found in the nucleus of an atom.
question
NUCLEUS
answer
small, dense region made of protons and neutrons in center of atom
question
MALLEABLE
answer
Capable of being shaped or formed
question
DUCTILE
answer
substance is able to be pulled into a wire
