Periodic Table (checklist)
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groups are the ___ lines in the periodic table
vertical ( columns)
periods in the periodic table are the ___ lines
horizontal (rows)
period number show
HOW MANY SHELLS THERE ARE
group number show
how many electrons are on the outer shell
do metals conduct electricity
yes
do non metals conduct electricity
no
metals character of oxide ( a base, acid, alkali)
react with water, forms base
non metals character of oxide ( a base, acid, alkali)
react with water, forms acid
metals on the periodic table are on the ( left or right )
left
elements in the same group have ___ electronic structures
similar
chemical properties are determined by
electronic structure
moving down a group, metals become ___ reactive
more
chemical reactions happen so that
atoms with incomplete outer shells can achieve stability by gaining a full outer shell
bonding of metals
metallic bonding
bonding of non metals
Covalent by sharing of outer shell electrons
do metals usually react with acids
yes
do non metals usually react with acids
no
physical characteristics of metals (4)
Usually lustrous (shiny) Solid at room temperature (excluding mercury) Malleable, can be bent and shaped High melting and boiling point
physical characteristics of non metals (4)
Dull, non-reflective Different states at room temperature Flaky, brittle Low melting and boiling points
noble gases are found in group
0
noble gases are
non metals, they exist as single atoms and are colourless and non-flammable at room temp
why are noble gases not reactive
because they have full outer shells so cannot gain or lose or share electrons