Group order Flashcards
Column (17 cards)
Group order
Column
Period order
Row
Energy levels and reactivity of metals
Increase down
Plum pudding model
Electrons in Sea of positive charge
Nuclear model
Small, dense, positively charged center (nucleus) surrounded by negatively charged electrons
Bohr model
Electrons orbit nucleus
Electron cloud model
Electrons move on a fuzzy cloud around nucleus
Structure of electron cloud
Fuzzy areas where electrons are to be found around atoms nucleus
Electromagnetic Force
Attracts electrons to nucleus
Strong nuclear force
Holds nucleus together
Same group
Similar properties, same number of outer electrons. Down = bigger
Same period
Different number of outer electrons
Down=smaller, change from metals to nonmetals
Metals
Left side
Shiny, bendable, stretchable
Good heat conductors
Non metals
Right side
Dull, brittle
Poor heat conductor and electricity conductor
Metalloids
Between
Both metal and non metal
Semiconductor (sometimes conduct)
Electrically neutral
Equal number of protons and electrons
Balance each other out
Ion
proton
Determined identity, mass, and size
