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Vocabulary List 1
Vocabulary List 2
Element Names and Symbols
The Atomic Model
Atomic Math
100
A particle with a positive charge.
What is a proton?
100
Vertical columns of the periodic table, also known as families
What is a group?
100
Hydrogen
What is H?
100
Electrons move at high speeds in this general term around the nucleus.
What is the electron cloud?
100
An atomic number equal to 12 equals this number of protons.
What is 12?
200
A particle with a negative charge.
What is an electron?
200
Horizontal rows of the periodic table.
What is a period?
200
Ca
What is calcium?
200
He discovered the nucleus of an atom with his gold foil experiment.
Who is Ernest Rutherford?
200
In a neutral atom, an atomic number of 15 equals this many electrons.
What is 15?
300
A pure substance, where all atoms have the same atomic number.
What is an element?
300
An abbreviation for a specific element.
What is an element symbol?
300
Al
What is aluminum?
300
He concluded that electrons are located in planet-like orbits. He was also a Danish citizen, with a large head.
Who is Neils Bohr?
300
With an atomic mass of 12, Carbon contains 6 protons and this many neutrons.
What is 6?
400
The number of protons found in an element
What is the atomic number?
400
Two or more substances that are mixed, but not chemically combined. There can be separated by physical means.
What is a mixture?
400
Beryllium
What is Be?
400
He discovered neutrons.
Who is James Chadwick?
400
A Neon atom has an atomic mass of 20, and has 10 protons. It also has this many neutrons.
What is 10?
500
Energy levels where the electrons are found.
What is a shell?
500
An atom or molecule with a charge due to the loss or gain of electrons.
What is an ion?
500
Fluorine
What is F?
500
He discovered the negative electron.
Who is JJ Thomson?
500
Boron has a mass of 10.8 and 5 protons, giving it this many neutrons in its nucleus.
What is 6?