Show:
Theories of Atomic Structure
Elements, Atoms and Compounds
The Periodic Table
Ions!
Stuff you probably should know...
100
This famous scientist developed the Atomic Theory.
Who is John Dalton?
100
This is the element Be.
What is Beryllium?
100
This is the name for "rows" in the periodic table.
What are periods?
100
Atoms must gain or lose these to form ions.
What are electrons?
100
Nuclei of atoms contain protons and these.
What are neutrons?
200
This widely regarded chemist pioneered the model of the atom in which the electrons orbit the nucleus in defined paths and planes.
Who is Niels Bohr?
200
This is the sum of an atom's protons and neutrons.
What is the mass number?
200
This group in the periodic table form strong bases, and have high melting points.
What are the alkaline earth metals?
200
When an otherwise neutral atom gains an electron, it is said to be this.
What is an anion?
200
Oxygen in its natural state exists as this type of molecule.
What is a diatomic molecule?
300
J.J. Thomson used this instrument to discover the presence of electrons.
What is a cathode ray tube?
300
This is the law that states that a given compound always has the same composition, regardless of where it comes from.
What is the Law of Constant Composition?
300
This is the least reactive group on the periodic table.
What is are the noble gases?
300
An alkaline earth metal will typically form this charge as an ion.
What is a +2 charge?
300
Different forms of a given element are called this.
What is an allotrope?
400
John Rutherford used this particle to determine the presence of the atomic nucleus.
What is the alpha particle?
400
This is the name given to the representation of compounds using specific rules and symbols.
What is a molecular formula?
400
This group on the periodic table forms strong acids, and are highly reactive.
What are the halogens?
400
An ionic compound must have this net charge.
What is zero?
400
The noble gases typically form this charge.
What is a neutral charge?
500
In the modern concept of atomic structure, if the nucleus were the size of a grape, the electrons would be this far away.
What is a mile?
500
This molten element is thought to be the main component of Earth's core.
What is Iron?
500
This group of elements on the periodic table are unique in that they form the building blocks of living material.
What are the organic elements?
500
Given this equation, fluorine has become what form of an ion: F + (e-) --> F-
What is an anion?
500
Based on their ionic charges, sulfur and sodium would form this molecular formula.
What is Na(2)S