Show:
Matter And Change
The Atom
Electron Arrangement
Thermochemistry
Periodic Table and Trends
100
A change in which one or more substances are converted into different substances.
What is a chemical change?
100
Law that states,"Mass is neither created nor destroyed during ordinary chemical reactions of physical changes."
What is the law of conservation of mass?
100
On the Periodic Table,the name of the group 18 elements.
What are the noble gases?
100
The measure of the average kinetic energy of the particles in a sample of matter.
What is temperature?
100
An arrangement of the elements in order of their atomic numbers so that elements with similar properties fall in the same group.
What is the periodic table?
200
The smallest unit of an element that maintains the properties of that element.
What is an atom?
200
Identifies the element as well as states the number of protons in the nucleus.
What is atomic number?
200
The distance between corresponding points on adjacent waves in reference to the electromagnetic spectrum.
What is wavelength?
200
The amount of energy required to raise the temperature of one gram of substance by one degree Celsius.
What is specific heat?
200
The name given to the Group 1 elements on the periodic table.
What are the alkali metals?
300
Matter in this state has neither definite volume nor definite shape.
What is a gas?
300
Atoms of the same element that have different masses.
What is an isotope?
300
The number of waves that pass a given point in a specific time in reference to the electromagnetic spectrum.
What is frequency?
300
The SI unit of heat as well as all other forms of energy.
What is a joule?
300
The name of the elements in the "d" block with typical metallic properties.
What are the transition metals?
400
This mixture is uniform in composition.
What is homogeneous?
400
Avagadro's number as well as the number represented by one mole.
What is 6.02x10^23?
400
Symbolized by "n", indicates the main energy level occupied by the electron.
What is the principal quantum number?
400
The energy absorbed or released as heat in a chemical reaction or physical change is measured through this piece of lab equipment.
What is a calorimeter?
400
Law that states,"The physical and chemical properties of the elements are periodic functions of their atomic numbers."
What is the periodic law?
500
High temperature physical state of matter in which atoms lose their electrons.
What is plasma?
500
Chemical equations contain exactly the same proportions of each element.
What is the law of definite proportions?
500
Symbolized by "m", indicates the orientation of an orbital around the nucleus.
What is the magnetic quantum number?
500
The amount of energy absorbed or lost by a system represented by "delta H".
What is enthalpy change?
500
The name of the elements with atomic numbers 90-103.
What is the actinide series?