The Atom
The subatomic particle with 0 mass and a charge of -1.
What is an electron?
Avogadro's number.
What is 6.02x1023?
The rule that states that all atoms want 8 electrons in their valence shell to be stable.
What is the Octet Rule?
This family contains colorless, odorless gases that are unreactive. All but one of the elements in this family have 8 valence electrons.
What are the Noble Gases?
Name the following: K3N
Potassium Nitride
This subatomic particle differs between isotopes of the same element.
What are neutrons?
The molar mass of carbon. (must include units for correct answer!)
What is 12.01 g/mole?
This element has an electron configuration of 1s22s22p3.
What is nitrogen?
The element with the largest atomic radius out of the following group of elements: Beryllium, Boron, Carbon.
What is Beryllium?
The percent composition of sodium in sodium chloride.
What is 39.34%
This isotope of carbon has 8 neutrons in its nucleus.
What is carbon-14 (C-14)?
Convert 84.65 g of NaCl to moles
1.45 moles NaCl
This element has the Noble Gas Configuration of [Kr]5s2 4d4.
What is Molybdenum?
What is Ca?
The name of the ionic compound Li3PO4.
What is lithium phosphate?
The type of ion that is formed when an atom loses electrons.
What is a cation?
Convert 194.33 g of CuSO4 to molecules.
7.33x1023 molecules of CuSO4
What element has the configuration: [Xe] 6s2 4f12
Erbium
The energy required to remove an electron from an atom is called...
What is ionization energy?
The name of Cr2C
Chromium (II) Carbide
The mass number of a sodium atom with 13 neutrons.
What is 24 amu.
Convert 1.43x1025 molecules of Sodium Nitrate to grams.
2018.96 grams NaNO3
What is the Aufbau Principle?
The name of the scientist who organized elements on the periodic table by increasing atomic number (the periodic table we use today).
Who is Henry Moseley?
The percent composition of all elements in Cobalt (II) Arsenide
Co: 54.13%
As: 45.88%