Show:
Atoms
Isotopes
Chemical Compounds/Molecules
Chemical Bonds
Miscellaneous
100
The basic unit of matter.
What is an atom?
100
Atoms of the same element that differ in the number of neutrons.
What are isotopes?
100
A substance formed by the chemical combination of two or more elements in definite proportions.
What is a chemical compound?
100
Th two main types of chemical bonds.
What are ionic bonds and covalent bonds?
100
6.022x10 to the tweny third
What is the Avogadro Number?
200
The subatomic particles that make up the atom.
What are protons, neutrons, and electrons?
200
The total number of protons and neutrons in the nucleus of an atom.
What is the mass number?
200
The smallest unit of most compounds that displays all the properties of that compound.
What is a molecule?
200
Formed when one or more electrons are transferred from one atom to another.
What is an ionic bond?
200
Explains the difference between the three states of matter.
What is the kinetic theory?
300
In constant motion in the space surrounding the nucleus.
What are electrons?
300
The "weighted" average of the masses of an element's isotopes.
What is atomic mass?
300
The chemical formula for water which contains hydrogen and oxygen.
What is H2O
300
Electron in the outer shell of an atom which can combine with other atoms to form molecules.
What are valence electrons?
300
Slight attraction that develop between oppositely charged regions of nearby molecules.
What is are the van der Waals Forces?
400
Particles that carry no charge at all?
What are neutrons.
400
When nuclei are unstable and breakdown at a constant rate over time.
What is a radioactive isotope?
400
A poisonous, yellow-greenish gas that was used in battles during World War I.
What is chlorine?
400
Whens atoms share two electrons.
What is a single covalent bond?
400
Tastes bitter feels slipper, changes fom red to lue, water solutions conduct an electic current.
What are the properties of bases?
500
Created the concept of the atom.
Who is Democritus?
500
Can determine the ages of rocks and fossils by analyzing the isotopes found in them.
What are geologists.
500
Gasses that can combine explosively and form luquid water at room temperature.
What is hydrogen and oxygen?
500
Atoms sharing six electrons.
What is a triple bond?
500
The bonds between atoms of a molecule as well as any unbonded electron pairs.
What is the Lewis Dot Structure?