these are the rows in the periodic table and they determine the number of energy levels of the elements on that row
What is Periods
100
small number next to a chemical symbol
What is subscript
100
compounds that contain Carbon, Hydrogen, Oxygen, Nitrogen, Sulfur, and Phosphorus
What is Organic Compounds
100
chew, churn, grind, or cut
What is physical change
200
Determines the identity of the atom
What is atomic number
200
these are the columns in the periodic table and the elements in the same column have the same number of valance electrons
What is groups
200
atoms break bonds, they rearrange and form new substances
What is a chemical reaction
200
breaks down into simple sugars
What is Carbohydrates
200
in a laboratory the students place a substance on a hot plate. after a couple of minutes the substance starts boiling. the substance starts to have bubbles and it moves constantly. this is a sign of what type of change
What is a physical change
300
determines the mass of the atom
What is protons and neutrons
300
they can be malleable, insulators, and lustrous
What is metalloids
300
they are place before the yield arrow in a chemical equation
What is reactants
300
compounds without carbon
What is inorganic compounds
300
this is the strategy to remember the signs of a chemical change
What is pretty girls like to change shoes often
400
they are in the outer most energy level
What is valance electrons
400
these are not found in the Periodic Table of elements
What is compounds
400
the law of conservation of mass
What is matter cannot be created nor destroy it can only be change or transformed
400
what makes a protein
What is amino acids
400
these are the parts of the human body where physical and chemical change occur during digestion
What is the mouth and stomach
500
scientist that create todays model of the atom
What is John Dalton
500
the second group or family in the Periodic Table
What is Alkaline or Earth Metals
500
the number of elements in the reactants
K4Fe(CN)6 + 6 H2So4 + 6 H2O → 2 K2So4 + FeSo4 + 3 (NH4)2So4 + 6 CO
What is 8
500
the four more important organic compounds in the bodies
what is proteins, nucleic acids, lipids, and carbohydrates
500
part of the digestive system that neither physical or chemical change occurs.