periodic table Flashcards
How is the periodic table arranged?
in order of increasing atomic number
What do groups have in common?
similar chemical properties due to same number of valence electrons
What is Ionization energy?
the energy it takes to remove an electron from a gaseous atom
What is the measure of an atoms attraction for electrons?
electronegativity
What type of element (metal or nonmetal) have low ionization energies and electronegativities?
metals
Do nonmetals have high or low ionization energies and electronegativities?
high ionization energies and electronegativities
Metals like to form positive or negative ions?
positive ions
What type of element (metal or nonmetal) like to form negative ions?
nonmetals
Are metals shiny or dull? Malleable or brittle?
metals are shiny and malleable
What type of element (metal or nonmetal) is dull and brittle?
nonmetal
Where are the most metallic elements?
bottom left of periodic table
Where are the most nonmetallic elements?
top right of the periodic table
Name the 6 metalloids
B, Si, Ge, As, Sb, and Te
What happens to size as you go down a group? Why?
larger due to more shells/principal energy levels
What happens to ionization energy and electronegativity as you go down a group? Why?
ionization energy and electronegativity decrease due to larger size
What happens to ionization energy and electronegativity as you go across a period? Why?
ionization energy and electronegativity generally decrease due to smaller size
Discuss metals regarding gain or loss of electrons, positive or negative ions, and ionic radius.
Metals lose electrons and form smaller positive ions
Discuss nonmetals regarding gain or loss of electrons, positive or negative ions, and ionic radius.
Nonmetals gain electrons and form larger negative ions
What is the name of group 1?
Alkali metals
What group is the alkaline earth metals?
2
What is the name of group 18?
nobel gases
What group is the halogens?
17
What is the most active nonmetal?
(F) fluorine
