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Atoms
Nucleus
Elements
Periodic Table
Potpourri
100
The smallest unit of a pure substance that still has the properties fo that substance.
What is an atom?
100
Protons and Neutrons.
What is the subatomic particles which make up an atom's nucleus?
100
A pure substance that's made up of only one kind of atom.
What is an element?
100
This scientist was the first to classify elements in a table by their atomic mass.
What is Dmitri Mendeleev?
100
Hydrogen is the exception.
What is hydrogen does not fit into any family on the periodic table?
200
This is at the center of an atom.
What is the nucleus?
200
This Scientist was the first to do experiments which showed an atom has a nucleus.
What is Ernest Rutherford?
200
We know of this number of elements today.
What is 112?
200
How Scientists now organize the periodic table.
What is by atomic number? (The number of protons in an atom)
200
The English word, the Latin word, Scientist or place discovered.
What is how elements get their names?
300
A subatomic particle which has a negative charge.
What is an electron?
300
Atoms that have the same number of protons but different numbers of neutrons.
What is an isotope?
300
These conduct electricity.
What is Metals?
300
Gases, Metals, and Nonmetals.
What is how the elements on the periodic table are classified?
300
The property of some metals of being easily bent or rolled.
What is malleability?
400
The orbit of electrons around the nucleus is best described as this.
What is a cloud?
400
It holds the protons and neutrons together in the nucleus.
What is the strong nuclear force?
400
Dull color and does not conduct electricity.
What is Nonmetals?
400
An abbreviation of an element's name.
What is the chemical symbol?
400
Columns in the periodic table show this.
What is families of elements?
500
A subatomic particle with no charge.
What is a neutron?
500
Empty Space.
What is what is there alot of in an atom? What is between the nucleus and electrons?
500
What Scientists hypothesize about the naturally occuring elements.
What is hydrogen fusion from stars? What is all elements are formed from elements in stars?
500
Rows of elements are called this.
What is periods?
500
The location on the periodic table of the most reactive metals to other substances.
What is the first column of the periodic table?