Atomic Structure
The weighted average mass of all naturally occurring isotopes.
What is atomic mass?
The orbital type that holds a maximum of 6 electrons.
What is a p orbital?
The polarity of a bond between atoms with an electronegativity difference of 0.1.
What is nonpolar covalent?
Write the compound formed between magnesium and nitrogen.
What is Mg₃N₂?
A reaction that releases energy in the form of heat or light.
What is exothermic?
Which isotope is more abundant if the atomic mass of chlorine is 35.45: Cl-35 or Cl-37?
What is Cl-35?
Which has a larger radius: Na or Na⁺?
What is Na?
Determine the shape of SO₂.
What is bent?
Name PCl₅.
What is phosphorus pentachloride?
The number of significant figures in 0.00450.
What is three?
This experiment proved that the atom has a dense, positively charged nucleus.
What is Rutherford’s gold foil experiment?
Explain the trend in ionization energy down a group.
What is it decreases due to increasing radius and shielding?
Explain why ionic compounds conduct electricity when molten but not as solids.
What is ions are free to move only in the liquid state?
Write the name for H₂SO₄.
What is sulfuric acid?
This law states that matter is neither created nor destroyed.
What is the Law of Conservation of Mass?
Calculate the number of neutrons in U-238.
What is 146 neutrons?
Identify the element: [Ne] 3s² 3p¹
What is aluminum?
This VSEPR shape results when there are 3 bonding domains and 1 lone pair.
What is trigonal pyramidal?
Provide the formula for ammonium carbonate.
What is (NH₄)₂CO₃?
Determine the oxidation number of oxygen?
What is –2?
What does an electron weight in amu?
What is 0 amu?
Predict which has the higher electronegativity: Cl or Br, and explain why.
What is Cl because it has a smaller radius and stronger nuclear pull?
Rank IMF strength: London dispersion, hydrogen bonding, dipole-dipole.
What is hydrogen bonding > dipole-dipole > London?
Name the compound Fe₂(SO₃)₃.
What is iron(III) sulfite?
The type of reaction represented by
KClO₃ → KCl + O₂
What is decomposition?