Groups (Families) Flashcards
columns on table
they all have similar properties
periods (rows)
represent energy levels
valence electrons
the electrons left over on the last energy ring
D & F block, no valence electrons
*back-fill
*introduce more electrons on previously filled energy levels
Octet Rule
atoms will gain, lose, or share electrons to become stable (a noble gas)
Alkali Metals
*First Column
*basic react with h2o to form hydroxides
*highly reactive
*soft silver metals
Alkaline Metals
2nd column
shiny, solids harder
found combined with oxygen
Very reactive
Transition metals
columns 3-12
hard solids mostly with high melting points
all form cation (+ charge)
can have multiple charges (C1 or C2)
column 13
Boron family (first element in row)
Group 14
Carbon Family
Group 15
Nitrogen Family
Group 16
Chalcogene
Group 17
Halogens (salt farmers)
form ionic compounds
highly reactive
can’t be found in nature
Group 18
Nobles gases
4f
Lanthanides
5f
Actinides
Metals
good conductors
malleable
ductile
shiny
solids
high melting points
lose electrons when bonding
Non metals
Poor conductors
non ductile
non malleable
full
low melting points
can be solid liquid or gas
gain electrons while bonding
metalloids
has properties of both metals and non
good semiconductors