Atom Scientist Word Scramble

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Question	Answer
Said atoms are uncuttable.	Democritus
Said atoms are small, hard particles.	Democritus
Atoms are made of single material formed into different shapes and sizes.	Democritus
Atoms of different elements are different.	Dalton
Atoms of the same element are exactly alike.	Dalton
All substances are made of atoms.	Dalton
He wanted to know why elements combine is specific proportions.	Dalton
He conducted experiments in combining elements.	Dalton
His theory of the atmoic structure led to the "plum-pudding" model.	Thomson
There are small negatively charged particles inside the atom.	Thomson
He conducted the cathode-ray tube experiment.	Thomson
Most of an atom's mass is in the nucleus.	Rutherford
He conducted the gold foil experiment.	Rutherford
There is a small, dense, positively charged nucleus.	Rutherford
His model had electrons surrounding the nucleus at a distance.	Rutherford
Atoms contain mostly empty space.	Rutherford
Electrons travel in certain paths, or energy levels.	Bohr
Electrons can jump from a path in one level to a path in another.	Bohr
Electrons are found in electron clouds, not paths.	Schrodinger and Heisenberg
Electrons paths cannot be predicted.	Schrodinger
In physical science, an atom's central region, which is made up of protons and neturons.	Nucleus
Describes something that occurs or repeats at regular intervals.	Periodic
The sum of the numbers of protons and neutrons in the nucleus of an atom.	Mass number
A vertical column of elements in the periodic table; elements in a group share chemical properties.	Group
One of the elements of Group 2 of the periodic table(beryllium, magnesium, calcium, strantium, barium, and radium).	Alkaline-Earth Metal
ONe of the elements of Group of the periodic table(helium, neon, argon, krypton, xenon, and radon);are unreactive.	Noble Gas
ONe of the elements of Group 1, of the periodic table(lithium, sodium, potassium, rubudium, cesibium, and fancium)	Alkali Metal
An atom that has the same number of proton(or the same atom number) as other atoms of the some element do but that has a drift aren;tnumber of neutrons(and thus a different atomic mass).	Isotope
One of the elements of Group 17 of the periodic table (fluorine, chlorine, bromine, iodine, and astatine) they combine with most metals to form salts.	Halogen
In chemistry, a horizontal row of elements in the periodic table.	Period
The number of protons in the nucleus of an atom; the atomic # is the same for all atoms of an elements.	Atomic Number
A region around the nucleus of an atom where electrons are likely to be found.	Electron Cloud
A unit of massthat describes the mass of an atom or molecule.	Atomic Mass Unit
The smallest particle into hich an element can be divided and still be the same substance.	Atom
A subatomic particle has no change and that is found in the nucleus of an atom.	Neutron
A subatomic particle that has a positive charge and that is found in the nucleus of an atom.	Proton
THe mass of an atom expressed n atomic units.	Atomic Mass
THe law that states that the repeating chemical and physical proporties of elements change periodically with the atomic numbers of the elements.	Periodic
A subatomic particle that has a negative charge.	Electron

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