History of the Periodic Table
The last name of the scientist who created the modern periodic table.
What is Mendeleev?
What is a period
The least reactive nonmetals
The two types of metals that are so reactive, that they are never found alone in nature.
What are alkali metals and alkaline earth metals?
The category that Silicon, Antimony, and Polonium all belong to.
What are metalloids?
The four groups Lavoisier grouped elements into.
What were metals, nonmetals, gases, and earth?
The TWO names for a column on the periodic table
What is a family and a group? (Or what is a group and a family)
The most reactive metals.
What are alkali metals?
A family of elements that are useful in small amounts and dangerous in large amounts.
What are halogens?
The metal that is most reactive- Tin or Rubidium.
What is Rubidium?
The way Mendeleev arranged the chemical elements he knew of.
What was by increasing mass?
The glass that is made up of boron, silicon, and oxygen that can withstand being heated and cooled rapidly.
What is Pyrex?
The most reactive nonmetals.
What are halogens?
The amount of valence electrons the carbon family has.
What is 4?
The metal that is most reactive- Lithium or Francium.
What is Francium?
The unknown element he predicted would have properties similar to those of aluminum
What is Eka-aluminum?
An element that is a good conductor of heat and electricity, malleable, has luster, and is ductile.
What is a metal?
How properties on the periodic table repeat.
What is from period to period (row to row)?
The number of valence electrons helium has.
What is 2?
The nonmetal that is most reactive- Fluorine or Carbon.
What is Fluorine?
The evidence that Mendeleev's periodic table was useful.
What is the discovery of elements with predicted properties?
An element that is a poor conductor of electricity and heat, dull, brittle, not malleable, lower densities than metal, and mainly gas at room temperature.
What is a nonmetal?
The number of valence electrons the most reactive elements have.
The way in which the number of valence electrons changes as you go from left to right across a period.
What is increasing by one?
The nonmetal that is most reactive- Astatine or Chlorine.
What is Chlorine?