Atomic Symbols
Al
Aluminum
The vertical columns of the periodic table
groups/families
The tall columns (except noble gases) belong to a region know by this name.
Representative Elements
Between Metals, nonmetals, Metalloids, most elements are..
Metals
The rows in the periodic table are known as this
Periods
this is the symbol for which element Ni
What is Nickel?
The elements in Group 18
Noble Gases
The Inner Transition Metals consist of two periods that are known as this.
Lanthanides and actinides
This class of elements have properties of both metals and nonmetals.
Metalloids
Marie Curie discovered 2 elements. Name those elements. (200 points per)
Radium, Polonium
This is the symbol for which element: Kr
What is Krypton
Extremely reactive elements in that are part of the metals and have 1 valence electron and are known as this.
What are alkali metals?
Name 3 elements that are noble gases
He, Ne, Ar, Kr, Xe, Rn
Hydrogen belongs to this classification
Non-Metal
Elements in the same Period share the same number of these..
Electron Shells
The atomic symbol of an element that is liquid at room temperature
Br or Hg
This noble gas has less than 8 protons
What is helium?
Groups 3-12 are known as this region
Transition Elements
These are the properties of nonmetals.
What are brittleness, low boiling/melting points, fragil, non-ductility, non-malleability, poor conductors of electricity and heat
Who proposed the original organization of the periodic table
Demitri Mendeleev
The atomic symbol of the element that has the atomic number 79
Au
Name of the group 17
Halogens
This region contains elements that are unreactive due to their valence electron configuration
Noble Gases
List 3 atomic symbols that are metalloids
B, Si, Ge, As, Sb, Te, Po
Electrons in the outermost shell are called this
Valence Electrons