Vocabulary
Vocabulary 2
Scientists
The Atom
The Periodic Table
100
The smallest particle of an element
What is an atom
100
Atomic Mass Unit
What is AMU
100
He was responsible for the gold foil experiment and he discovered the nucleus
Who is Rutherford
100
What is particle A?
What is an electron
100
What is the element symbol for this element?
What is C
200
A representation of an object or system
What is a model
200
Meaning "indivisible"
What is atomos
200
He discovered the electron and used the plum pudding model
Who is Thomson
200
What is particle B?
What is a neutron
200
What is the atomic mass for this element?
What is 12.01
300
Atoms of the same element that have different number of neutrons
What are isotopes
300
A region around the nucleus of an atom where electrons are likely to be found
What is electron cloud
300
He was a Greek philosopher who said that all matter is made of tiny particles called "atomos" or atoms
Who is Democrius
300
What is particle C?
What is a proton
300
How many neutrons would this element have?
What is 6
400
Model of an atom that shows electrons in circular orbits around the nucleus
What is a Bohr Model
400
The total number of protons and neutrons in the nucleus of an atom
What is mass number
400
He disagreed with Democritus and said that there were no indivisible particles
Who is Aristotle
400
What is the name of part B?
What is the nucleus
400
Rows that go across from left to right are called:
What are periods
500
A unifying explanation for a broad range of hypotheses and observations that have been supported by testing
What is a theory
500
The weighted average of the masses of the isotopes of an element
What is atomic mass
500
He was a British chemist who published his own atomic theory in 1803
Who is Dalton
500
What is the name of part F?
What is electron cloud or energy level.
500
Columns that go up and down are called:
What are groups