Chapter 5 - Order Among The Elements Flashcards
(76 cards)
The process of extracting metals from their metallic ores.
Smelting
Percentage of the world’s sulfur dioxide emissions produced b copper and other non-iron smelters globally.
8%
Enormous amounts of toxic metals in the stack gases released by smelters
Arsenic
Lead
Cadmium
They are responsible for huge dead zones.
Toxic metals
An example of a place where there’s pollution form huge copper smelter.
Sudbury, Ontario, Canada
Periodic table contains _____ that are grouped into;
- Metals
Nonmetals
Semimetals - S/p/d/f-block elements
- Representative
Transition
Inner transition
Periodic table is arranged into groups from top to bottom to have increasing_______. Or Periodic table is arranged into periods from left to right have decreasing
Atomic size
Periodic table is arranged into groups from top to bottom to have decreasing ____. Or Periodic table is arranged into periods from left to right have increasing ______.
Ionization energy
Electron affinity
Electronegativity
In 1817, a professor at the University of Jena in Germany, noticed that certain groups of elements having similar properties seemed ti come in groups of three, such as that the middle element was approximately equal to the average of the heaviest and the lightest ones.
Johann Wolfgang Döbereiner
These were groups that Johann D. made.
Döbereiner’s triads
In 18 64, he reported his law of octaves. He observed that every eighth element had properties similar to each other. His law was so named because of its rsemblance to a musical octave thwt occurs every eighth note.
John Alexander Reina Newlands
They proposed that when elements were arranged in order of increasing atomic mass, recurring patterns appeared i. Their properties.
Dmitri Mendeleev
Julius Lothar Meyer
States that when elements are arranged in the order of increasing atomic number their physical and chemical properties show periodic pattern.
Periodic law
Published book of Dmitri Mendeleev
Principles of Chemistry
The rows in the periodic table are called
Periods
The columns in the periodic table are called
Groups
The periodic table has _____ periods and _____groups
7, 18
Ways to label the groups in the periodic table
Traditionally/ roman numerals with letters a and b
IA to VIIIA, IB to VIIIB
Arabic numberals
Meaning of IUPAC
International Union of Pure and Applied Chemistry
Generally hard, lustrous, malleable, ductile
Metals
Metals form string framework
Al, Fe, Cu
Chemically unreactive to solids at room temperature and resistant to chemical corrosion and rust.
Cu, Ag, Au
Elements that are extremely reactive with air and water
Li, K, Na
The reactants used to make ores
Coke and limestone