What is the special name for the 'outside' or outermost electrons?
What is Valence electrons
100
What do the elements in a period have in common?
What are the number of energy levels/shells/orbitals?
ZING! Which metalloid element is SUPER important for electronics like your cell phone & solar panels?
100
Chemical reactions happen because atoms want to become more...
What is complete, stable, happy?
100
On the pH scale, what is the range of acids?
What is 0-6.9?
100
What are the three types of elements on the periodic table?
What are Metals, Nonmetals, Metalloids?
200
The nucleus of an atom has what charge?
What is Positive?
200
Most of the periodic table is made up of what type of elements?
What is metals?
200
What type of bond is found in a molecule of the compound water?
What is a covalent bond?
200
On the pH scale, what is the range of bases?
What is 7.1-14?
200
Name one physical and one chemical property of a substance.
What is...
300
*BONUS
What are the teeny-tiny particles that make up protons, neutrons, and electrons called?
What are Quarks
300
What key information will the periodic table tell you about an element?
(Hint: This information is found on each element's square)
What is the atomic number, atomic mass, name, symbol
300
What law states that all chemical reactions must be balanced- "You must end up with the same amount of stuff that you started with"?
What is the Law of Conservation of Mass?
300
Acids have more ____ ions.
Bases have more ____ ions.
What is H+ and OH-?
300
What is the difference between Co and CO?
What is Co is the element Cobalt, CO is a compound made up of Carbon and Oxygen.
400
In a Bohr model of the atom, how many electrons can fit on each orbital (from 1 to 3)?
What are 2, 8, and 18 electrons
ZING! Which compounds are Ionic? H2O, NaCl, MgO, HF, CO2, CaCl2
400
Why is the atomic mass of an element often written with decimals, ex. 12.010, and not as a whole number, ex. 12?
What is because the atomic mass is an average mass of all isotopes of an element?
400
What does a Coefficient tell you the number of?
What does a Subscript tell you the number of?
Coefficient- # of molecules
Subscript- # of atoms
ZING! The formula for a molecule of sugar is C12H22O11. How many atoms do three molecules of sugar contain?
400
When an acid and a base react with one another, the pH of the solution ends up somewhere in the middle. This is called...
What is Neutralization?
400
What happens if you change the number of protons of an element?
What is it will become a totally different element?
500
*BONUS
What are the three types of radiation?
What are Alpha, Beta, & Gamma radiation?
500
What family on the periodic table has full valence electrons and is unreactive?
What is the Noble Gases?
500
H and F atoms are about to undergo a chemical reaction. Describe exactly what happens to the electrons during this reaction.
What is the one electron from Hydrogen will be shared with the 7 Fluorine has, and both atoms will enjoy a stable & complete valence, F with an octet and H with a duet?
500
Indicators are chemicals that _________ when exposed to acids or bases.
What is change color?
500
All elements with an atomic mass over 83 (including Radon, Uranium, and Plutonium) have very large numbers of neutrons, are unstable and...
What is radioactive?
ZING! What are formed and broken during chemical reactions?