What is the average mass of all particles within within the atom for all isotopes. Found in the upper right of periodic table elements.
100
Reactants
What is before material
100
Renewable Energy
What is resources that can be replaced by natural process in a relatively short amount of time.
100
Nebula
What is cloud of gas and dust, (hydrogen and helium) begins to contract due to gravity.
200
Proton
What is positively charged particle in the nucleus.
200
Atomic Number
What is number that determines the number of protons in the atoms nucleus. Found in upper left of element.
200
Products
What is after material
200
Non renewable Energy
What is resources that can be used faster than replaced by natural process.
200
Protostar
What is clumps forming within the nebula, this begins to glow and rise in temperature.
300
Energy Levels
What is surrounds the nucleus and contains electrons.
300
Groups
What is vertical columns of elements that have similar chemical properties and determine the number of valence electrons.
300
Exothermic Reactions
What is releases energy with high and leaves product with low energy
300
Example of renewable
What is wind, solar, hydroelectric, geothermal and biomass
300
Main Sequence
What is where fusion begins, where most of the life of the star is spent, energy from fusion is balanced with gravity so the star does not collapse.
400
Ion
What is charged particles formed by gaining or losing electrons
400
Metal
What is shiny, conductable, easy to bend and easily looses electrons.
400
Endothermic Reactions
What is absorbs energy to the environment resulting in high energy product and low energy reactant.
400
Examples of nonrenewable
What is coal, uranium and natural gas
400
Red Giant
What is when the M.S star is running out of fuel and the core is contracting and the outer layers are expanding. The star cools and burns with more energy.
500
Isotope
What is an atom of the same element with a different number of neutrons and therefore a different mass number.
500
Non-Metals
What is dull, poor conductors, brittle and tend to gain electrons.
500
Law of conservation of Mass
What is Matter is converted NOT created or destroyed during chemical reactions.
500
Carbon Footprint
What is everything that uses energy in our lives and contributes to global warming.
500
The star next...
What is Becomes a super giant or like our star will a planetary nebula