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Periodic Table
History
Acids
Isotopes
Atoms
100
Elements in Group 1 of the periodic table
What are the alkali metals?
100
In the 1800s, he came up with an atomic theory
Who is John Dalton?
100
Acids can be defined this way, as a substance that gives something to another substance
What is a proton donor?
100
The number of neutrons in Si-30
What is 16?
100
The center of an atom
What is the nucleus?
200
Elements such as chlorine and fluorine, in Group 17 of the periodic table
What are the halogens?
200
JJ Thompson did a famous experiment with a cathode ray tube to isolate and figure out the charge on this subatomic particle
What is the electron?
200
The range of numbers in which you'd find acids on the pH scale
What is 0-7?
200
The number of protons in C-14
What is 6?
200
A negatively charged sub atomic particle
What is an electron?
300
Horizontal rows in the periodic table
What are periods?
300
A scientist who was shocked to discover that most of the ato is empty space
Who is Ernest Rutherford?
300
The ability of acids to eat through substances (like wood, metals, clothing, and skin)
What is corrosive?
300
The number of neutrons in Md-204
What is 103?
300
A very massive subatomic particle with no charge
What is a neutron?
400
Elements such as uranium and plutonium, numbered 89-103 on the periodic table
What are the actinides?
400
A contemporary of Socrates, this natural philosopher was the first to think of an atomic theory
Who is Democritus?
400
Acids react with metals to form this
What is hydrogen gas?
400
The number of neutrons in Te-99
What is 47?
400
A proton
What is a massive subatomic particle that has a positive charge?
500
The full name of the scientist we credit with the organization of the periodic table as we use it today
Who is Dmitri Mendeleev?
500
Neils Bohr's model of an atom featured these, which hold a maximum number of electrons
What is an energy level (or shell)?
500
An acid found in the digestive tract of the human body
What is hydrochloric acid?
500
Two or more forms of the same element that only differ in the number of neutrons
What is the definition of an isotope?
500
The nucleus of an atom is surrounded by this
What is mostly empty space or an electron cloud?