The SI unit of length.
What is Meter?
The building blocks of matter
What are atoms?
Cannot be separated at all.
What is an Element?
Electrons in the lowest energy configuration possible
Ground state
An atom of an element that has an abnormal number of neutrons
Isotope
Everything is composed of this.
What is Matter?
Nucleons
Can be physically sperated.
What is a Mixture?
Ex:
2-0-1
2-7-3
2-8-17-6
Excited state
The type of ion where electrons outnumber protons
How alike your results are.
What is Precision?
Two or more different elements chemically bound together
Compounds
The type of substance where every piece looks the same.
What is a Pure Substance?
Fill in the blank:
The greater the distance from the nucleus the ___________________ the energy of the electrons
Greater
The number of electrons lost by an atom of Be to become its desired form
2
What is Accuracy?
Interior electrons
Kernel Electrons
Ex: Pepperoni Pizza, Beach Sand, Loose Gravel.
What is a Heterogenous Mixture?
The type of line spectrum produced when energy is absorbed
Bright line spectrum
The formula is:
Mass x decimal relative abundance
Average atomic mass
The bond that forms between metal and nonmetal.
What is an Ionic Bond?
A model depicted by electrons in a cloud surrounding the nucleus of an atom
Wave-mechanical model
Can be monoatomic or diatomic.
What are Elements?
The elements that make up the mystery compound tested with a bright line spectrum
D and Z
The average atomic mass if carbon has 2 isotopes:
C-10 at 50%
C-12 at 50%
11