Periodic Table
Metals are located here on the periodic table
What is in the middle?
The symbol for oxygen
What is O?
What is an atom?
this is the pH range for acids
what is 0-7
A lemon has a pH of about this number
What is 0-3?
Non metals are located here on the periodic table
what is on the left and right?
The atomic mass of magnesium
What is 24?
A mixture that is uniform throughout (well-mixed)
What is a homogeneous mixture?
this is the pH range for bases
Bleach has a pH of about this number.
What is pH 11-14?
Who is Dimitri Mendeleev?
Most metals are found in this state at room temperature.
What is solid?
A mixture that is not well-mixed and has an uneven concentration
What is a heterogenous mixture?
If a substance has a pH of 7 it is this
K2NO3 has this many elements
What is 3?
Elements are organized by this
What is atomic number?
Elements that have some characteristics of metals and nonmetals are known as this.
What are metalloids?
pure substance
pH is a measure of the concentration of these ions
HNO3 has this many atoms?
What is 5?
Vertical columns on the periodic table are known as this
What are groups or families?
Helium, neon, argon, krypton, xenon, and radon (all found all the way to the right) are known as ______ gases.
What are noble gases?
This is the difference between molecules and compounds
What is a molecule is 2+ atoms, a compound is 2+ elements
This will happen if you mix an acid and a base together
What is neutralize?
This is why you should never trust an atom?
What is because they make everything up!