Show:
Matter
Meaurements
Atoms/ theory
Electron Arrangement
Periodic table
100
The study of composition, structure and the changes that materials undergo
What is chemistry?
100
The number of significant digts in 0.00370
What is Three?
100
Experiment with the cathode ray tubes led to the discovery this particle
What is electron?
100
the main energy level of an atom is called
What is the principal quantum numbers?
100
The modern day arrangement of elements according to their chemical and physical properties is credited to
Who is Mendeleev?
200
The branch of chemistry that is concerned with the porperties, changes and relationships bewteen energy and matter
What is Physical Chemistry?
200
An agreement among numerical measurements
What is precision?
200
an atom contain a lot of space with a positive nucles was the reult of this experiment
What is Rutherford Gold foil experiement?
200
The number of quantum numbrs that describes the energy state of an atom?
What is four?
200
the name of elements ranging from 58- 71
What are the Lanthanide series?
300
Property that includes the change or alter the identity of a substance
What is chemcial property?
300
Observations that are recorded using numerical values
What is qunatitative measurements?
300
Status of an atom has the same number of electrons and protons
What is neutral?
300
The quantum number that indicates the positon of an orbital about three axes in space
What is magnetic quantum Number?
300
Elements in a group or column will have
What are similar properties? Same numer of electrons in outer shell
400
Requires a certain amount of material to be measured
What is extensive property
400
The closeness of a measurement to the accpeted value
What is Accuracy?
400
Atoms of the same element with different masses
What is an isotope?
400
Orbitals of equal energy are occupied by one lectron before any is occupied by a second electron
What is Hunds rule?
400
The measure of the the ability of an atom in a chemcial compound to attract electrons
What is electronenagtivity?
500
Reactivtity, combustibility, alteration of material
What is chemcial properties
500
Mass per unit volume
What is Density?
500
The sum number of protons and Neutrons
What is the mass number?
500
Occurs when the s abd p oritals of the highest energy level are filled with electrons
What is an octet? or What is stable?
500
The energy require to remove an electron from an atom
What is ionization energy?