History of Atom
This is the scientist credited with the solid sphere model
Who is John Dalton?
These are positively-charged particles found in the nucleus.
What are protons?
These are what change in different isotopes of an element.
What is the number of neutrons?
This is an adjective given to elements that can be flattened easily into sheets.
What is malleable?
This is the number of electron orbitals that elements in the third row have.
What is 3?
This is the model put forth by JJ Thompson as a result of his cathode ray tube experiment.
What is the Plum Pudding Model?
These are the numbers of electrons held in the first and second orbitals, respectively. (I am looking for 2 numbers total)
What is 2 and 8?
These are what change in different ions of an element.
What is the number of electrons?
This is the state or phase of most metals.
What is solid?
This is the name given to column 17.
What is halogens?
These two scientists are responsible for the cloud model of the atom.
Who are Schrödinger and Heisenberg?
These are neutral particles found in the nucleus.
What are neutrons?
This is a comparison description of how many electrons an atom must have in order to have an overall negative charge.
What is having more electrons than protons?
This is the name given to those elements that have properties of both metals and nonmetals.
What are metalloids?
This is the number of valence electrons all elements in the boron group have.
What is 3?
Niels Bohr refined this scientist’s work to develop the orbital/planetary model.
Who is Rutherford?
This is the mass number of an atom with 24 protons, 28 neutrons, and 24 electrons.
What is 52?
(24+28=52)
This is the number of electrons in an atom of aluminum with a mass of 27 amu and a 3+ charge.
What is 10 electrons?
DAILY DOUBLE
This is the class of elements that are good insulators.
This is the name given to column 2.
What is alkaline earth metals?
This allowed the vast majority of positively-charged particles to fly straight through the gold foil.
What is empty space (in the atom)?
This is the element with 39 protons, 40 neutrons, and 39 electrons.
What is Yttrium (Y)?
DAILY DOUBLE
This is the number of neutrons in an atom of tellurium with a mass of 128 amu and a 2- charge.
These are the two elements that are in the liquid state at room temperature.
What are Bromine (Br) and Mercury (Hg)?
This is the element with 6 electron orbitals and 4 valence electrons.
What is Lead (Pb)?