Periodic Table
Atoms
Reactions
Chem or Phys
Random Stuff
100
column or family's # of electrons
What is the same # in the outer shell?
100
the center of the atom
What is the atomic region with the most mass?
100
2 H2 + O2 = 2 H2O molecules
What is the creation of water molecules?
100
burning a piece of paper
What is a chemical reaction?
100
4 is the number of bonds this element can make
What is Carbon?
200
represents the # of electron shells
What is the period or row?
200
tiniest part of an atom that we learned about
What is the electron?
200
reactants = products
What is the law of conservation of matter?
200
ripping a piece of paper
What is a physical change?
200
3 electron shells, 3 outer electrons
What is the element Aluminum?
300
non-reactive column on the far right
What are the noble gases?
300
atomic number is based on this count
What is the number of protons?
300
vinegar + baking soda =
What is an acid / base reaction? also acceptable: What creates a gas and a temperature change?
300
produce an energy release or a gas
What is a chemical reaction?
300
a charged particle that forms when an electron is gained or lost
What is an ion?
400
the atomic number or number of protons
What is the identity of each element based on?
400
Atomic mass - atomic number =
What is the number of neutrons?
400
based on outer electron placement
What determines an atom's reactivity?
400
boiling water
What is a physical change?
400
an atom that has a different number of neutrons than normal, resulting in a heavier atomic mass
What is an isotope?
500
K
What is potassium?
500
these have to balance to keep the overall charge even.
What are protons and electrons?
500
halogens and alkali metals
What are the two most reactive families?
500
a change that produces an odor, a gas or a change in temperature
What is a chemical change?
500
6 CO2 + 6 H2O = C6H12O6 + 6O2 = 6 CO2 + 6 H2O carbon dioxide + water = glucose +oxygen = c. diox. +water
What is the Law of Conservation of Mass?
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