Periodic Table
The periodic table is organized in vertical columns called ______.
Groups or Families
What is the chemical symbol for Lithium?
Li
What are the physical properties of metals?
Luster - Shiny and Reflective
Malleability - Can be hammered or rolled into flat sheets or other shapes
Ductility - Can be pulled out or drawn into long wires (Copper)
Conductivity
Thermal Conductivity - Ability of an object to transfer heat
Electrical - Ability of an object to transfer electricity
Magnetic - attracted to magnets (Iron, Nickel)
Most are solid at room temperature.
Mercury, Hg is liquid at room temperature
Who invented the periodic table as we know it today?
Dimitri Mendeleev
The periodic table is organized in horizontal rows called ______.
Periods
What period is Sulfur found in?
3
What group of metals are the most reactive?
Alkali Metals or Group 1
The periodic table has this many groups/families
18
The periodic table is organized from elements that are the _____________ to the _____________.
lightest, heaviest
The table is made mostly of ______.
Metals
Which metal is in liquid form at room temperature?
Mercury
The periodic table has this many periods
7
Nickel (Ni) is part of what group? Number and Name
10 and Transition Metals
Hydrogen is part of what group?
Nonmetals
Nonmetals, are they good conductors of heat and electricity?
No, they are poor conductors
Why is the periodic table called "the periodic table"
because elements repeat their properties 'periodically', every 8 elements
What group is the least reactive group?
18 or Noble Gas
Another name for metalloids
Semi Metal
Who constructed the most recent periodic table?
Mendeleev
who was able to predict the elements of the periodic table that had not yet been discovered?
Dimitri Mendeleev