Inside the Atom
These particles have almost no mass.
What are electrons?
Discovered that electrons are located at fixed distances around the atom.
Who is Bohr?
The electrons in the outer shell are called
What are valence electrons?
Substances that start reactions are
What are reactants?
The Law of ______ of _______ states that matter cannot be __________ or _____________
What are
Conservation
mass
created
destroyed
The atomic number tells how many of these there are in an atom.
What are protons?
The maximum amount of electrons in the second orbital is
What is 8?
Neon had a full outer shell so it does/does not want to react with others
What is does not?
Substances that are produced in a chemical reaction are
What are products?
The French Chemist who discovered the Law of Conservation of Mass
Who is Lavoisier?
Negatively charged particles in the atom.
What are electrons?
When electrons move back to their level they give off energy as
What is light?
The largest class of the elements
What are metals?
Signs a chemical reaction have ocurred:
What are
1. Bubbles
2. Odor
3. Precipitate (solid)
4. Change in temperature
Ms. Barron's favorite food
What are chips and salsa?
The mass number is these two particles added together.
What are the protons and the neutrons?
The area around the nucleus where electrons are likely to be
What is the electro cloud?
Elements are organized by
What is number of protons?
The large number before a symbol that MAY be changed
What is a coefficient?
To balance a chemical equation, you can change the
What are coefficients?
Contains the protons and neutrons.
What is the nucleus?
Energy levels further away from the nucleus have more or less energy.
What is more?
This Russian Chemist attempted to organize the elements
Who is Mendeleev?
The little number below a symbol that may NOT be changed
What is the subscript?
Read chemical equations from