A table of chemical elements arranged in order of atomic number.
What is the periodic table?
100
A basic unit of matter
What is an atom?
100
a group of atoms bonded together
What is a molecule
100
Any material that cannot be broken down by chemical means into simpler materials.
What is an element?
100
Smallest whole number ratio that exists between the cations
What is formula units?
200
Ar is this element on the periodic table and located in this section of the table
What is argon and noble gases?
200
An addition of how many protons and neutrons an atom has.
What is atomic mass?
200
This not a molecule
What is oxygen
200
He developed the first defintion of the element. This person said, “A body into which other bodies may be analyzed... and not itself divisible into bodies different in form.”
Who is Aristotle?
200
oxygen, Hydrogen and Florine
What are not examples of formula units?
300
The element oxygen is located in this section of the periodic table
What is other nonmetals?
300
This scientist created the 1st model of the atom.
Who is Dalton?
300
this is an example of a molecule
What is water
300
This person arranged elements by atomic mass in 1869.
Who is Mendeleev?
300
is the sum of the atomic weights of the atoms in the empirical formula
How do you find the mass of formula units.
400
The amount of energy required to remove an electron from an atom.
What is inozation energy?
400
The atomic mass of 1.00794 corresponds to which element.
What is Hydrogen?
400
this makes carbon dioxde a molecule
What is 2 oxygens and 1 carbon molecule
400
This is one of the major elements that we use in our daily lives.
What is oxygen?
400
Na+Cl-
What is the formula unit of sodium chloride?
500
We use the periodic table to find this type of number when solving math problems.
What is atomic mass?
500
Atomic mass is expressed in this mathematical unit.
What is grams?
500
This number is used to covert moles to atoms
What is avogardo's number
500
These two elements are considered to be the most common elements.