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Chemistry topic 4-8

Chemistry topic 4-6

how the elements are arranged by atomic mass
dmitri mendeleev father of the current periodic table
metals left side of the periodic table
metalloids fall along the staircase of the periodic table
non-metals on the right side of the staircase of the periodic table
valence electrons electrons in the outer most shell (they do the bonding)
columns of the periodic table are called this families or groups
rows (left and right) of the periodic table are called this periods
alkali family directly under hydrogen. All have one valence electron. Trying to get rid of it
Alkaline earth metals second column of the periodic table. All have 2 valence electrons
halogens 17th column in the periodic table. All missing one valence electron
noble gases 18th column of the periodic table. Inert
atomic number number of protons in an atom
formula to find neutrons rounded mass subtract the protons
molecular compounds made from two non-metals
ionic compounds made from a metal and non-metal
properties of molecular doesn't conduct electricity. Does not form ions. share electrons
properties of ionic forms ions. conducts electricity. steals electrons
formation reactions bonding elements to form compounds
decomposition reactions breaking compounds to form elements
single replacement reactions one element swaps who it is bonded to
double replacement reactions both compounds swap who they are bonded to
corrosion reactions require oxygen to run. Will create metal oxides
combustion reactions require oxygen to run. Will create water and carbon dioxide
activation energy required for any chemical reaction to start
exothermic chemical reaction that releases energy. Hot
endothermic chemical reaction that absorbs energy. Cold
diatomic molecules Two of the same element bonded together
reactant what goes into the chemical reaction
product what comes out of the chemical reaction
catalyst speeds up a chemical reaction without being used up
enzyme a naturally occurring catalyst in your body
inhibitor opposite of a catalyst. Will slow down chemical reactions
Created by: carly.riddle