Atomic Structure
This is the location of most of the mass of the atom.
What is the center of the atom?
OR What is the nucleus?
He theorized that elements are composed of tiny indivisible particles called atoms, which are identical for each element.
Who is John Dalton?
This number equals the number of protons.
What is atomic number?
This is the name of the famous experiment that Rutherford did.
What is the gold foil experiment?
Physical change or Chemical change:
The act of blending/pulverizing fruit and ice to make a smoothie
What is physical change?
These are the components of an atomic nucleus.
What are protons and neutrons?
Ernest Rutherford discovered that the mass and the positive charge of an atom are concentrated here.
What is the nucleus?
This is the charge on an electron.
What is negative?
OR What is -1?
This is the dessert associated with the Thomson model. [Full credit for the historically accurate dessert; half-credit for one that also works.]
What is the plum pudding model?
This separation method works well to better visualize pigments from a mixture on paper.
What is chromatography?
This is what we call the sum of the number of protons and number of neutrons.
What is atomic mass?
Neils Bohr's "planetary model" theorized that these are found in an atom orbiting outside the nucleus at specific energy levels.
What are electrons?
This is what leads to different isotopes.
What are different numbers/amounts of neutrons?
A Mg2+ ion has this many electrons.
What is/are 10 electrons?
This phase of matter has no fixed shape, but does have a consistent volume.
What is liquid?
What every carbon atom has only six of.
What are protons?
This particle has a mass of 1/1840 of a proton.
What is the electron?
This is what atoms mostly consist of, in terms of volume.
What is empty space?
This is the charge of the nucleus of a calcium atom.
What is 20+?
Or what is +20?
Something in the aqueous state (aka. a solution) can be classified as this form of matter.
What is a homogeneous mixture?
[Half-credit if only "mixture" is ever said. No credit for "heterogeneous mixture."]
This is how many electrons are part of a calcium atom.
What is/are 20 electrons?
[Assume neutrality with atom (p=e)]
This man was the last to come up with a defined atomic model.
Who was Erwin Schrodinger?
An atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
What is an ion?
This is how scientists arrived at the atomic mass of carbon, displayed in the top left of the corresponding Period Table element box.
What is took the weighted average of all known carbon isotopes, taking into account their abundances?
A solid product of a chemical reaction between liquids and/or solutions is called this.
What is a precipitate?
OR what is a precipitant?