Periodic table
7 horizontal rows
How many rows are on the periodic table?
How much matter is in a substance
What is the definition of mass?
Neutrons
What atom has no electric charges?
Is ice melting a physical or chemical change?
A physical change.
0-6
What is the pH scale of acids?
18
How many columns are on the periodic table?
A density triangle
What is a visual trick to help you remember the formulas?
Protons
What atom has positive charges?
Is fire burning a chemical or physical change?
A chemical change
7
What is a pH level of neutral?
118
How many elements are on the periodic table?
Volume
How much space something take up
Electrons
What atom has a negative electric charge?
Is cutting paper a physical or chemical change?
A physical change
8-14
What is the pH range of bases?
Metals, Non-metals, and Metalloids
How are the periodic table elements grouped?
Desnity
Property that describes how mass and volume are related.
Ion
What is an atom with a net electric charge?
Is making pancakes a physical or chemical change?
A physical change
The higher the pH, the more ---- the solution
Basic
Dmitri Mendeleev
Who invented the periodic table?
Grams for Cm3 or gram sper mL
What is the formula for density?
Nucleus
What is the center of an atom?
Both
The lower the pH, the more ---- the solution
Acidic