Show:
Atomic Structure
Periodic Table
Chemical Reactions
Chemical Formulas
100
Electron cloud
Where are electrons are located.
100
Dmitri Mendeleev
Who created the first periodic table.
100
odor, gas, temperature, color, light
What are signs of a chemical reaction
100
Compound
What is different elements joined chemically.
200
Positively charged particles found in an atom's nucleus
What is a proton?
200
By atomic number
The order of the periodic table.
200
Compound
What different elements joined together chemically
200
Subscript
What is indicates the number of atoms in a molecule
300
particles in an atom that do not have an electrical charge
What is neutron
300
Periods
What the horizontal rows on the periodic table call?
300
Exothermic
When energy is released in a chemical reaction
300
Coefficient
What is indates the number of molecules
400
the number of protons and neutrons
What is the atomic mass of an atom
400
Number of valence electrons
What the groups indicate
400
Endothermic reaction
What is the absorption of heat?
400
2 Hydrogens and 1 Oxygen
What is the formula for water?
500
when electrons and protons are not equal in an atom
What is an ion
500
Metalloids
What have properties of metals and nonmetals
500
Percipitate
What is the formation of a solid in a solution during a chemical reaction.
500
8
What is the number of Hydrogen atoms in 4H20