Keeping an eye on ions
Two atoms were walking down the street. One of them says "I think I LOST an electron". The other responds, "are you sure?". This is what the first atom answers.
What is I'm POSITIVE?
The type of bond where two atoms share 2 electrons.
The chemical formula for the compound between sodium and chlorine.
(Must write it on the white board before being selected)
What is NaCl?
Results from having a difference in electronegativity between two atoms that are covalently bonded.
What is a polar bond?
An element classified as a metal.
What is (any element to the left of the staircase on the periodic table)?
The charge of a fluoride ion.
What is -1?
This describes the melting and boiling point of covalent compounds
What is a low melting/boiling point?
The chemical formula for the compound between calcium and fluorine.
(Must write on the white board before being selected)
What is CaF2?
The way to tell if a molecule is polar.
What is when the shape is NOT symmetrical?
An element classified as a metalloid.
What is (B, Si, Ge, As, Sb, Te, Po)?
The type of elements involved in an ionic bond.
What is a metal and a nonmetal?
Type of bond between the two oxygens in an oxygen molecule (O2).
What is a double covalent bond?
The chemical formula for a compound between aluminum and sulfur.
(Must write on the white board before being selected)
What is Al2S3?
An example of a molecule that has polar bonds but is a nonpolar molecule.
What is CO2?
Describes the substance that conducts electricity when dissolved in water.
What is ionic compound or salt?
The charge of a calcium ion.
What is +2?
The type of elements involved in a covalent bond.
What are nonmetals?
The chemical formula for the compound between sodium and chromate (a polyatomic ion).
(Must write on the white board before being selected)
What is Na2CrO4?
A molecule that is famous for being polar.
(Mrs. Torres' favorite fact in chemistry)
What is water, H2O??
The only group in the periodic table that has elements at all three states of matter at STP.
What is group 17 or Halogens?
The Lewis electron dot structure for the compound between magnesium and oxygen.
(Must write on the white board before being selected)
What is Mg+2 [O]-2?
(the oxygen has 8 dots around it)
The lewis electron dot structure for a molecule of nitrogen, N2.
(Must write on the white board before being selected)
The chemical formula for the compound between ammonium (polyatomic ion) and oxygen.
(Must write on the white board before being selected)
What is (NH4)2O?
Draw a Lewis electron dot structure for a molecule of HBr and state its molecular polarity.
(Must write it on the white board before being selected)
What is H–Br (6 dots around Br) and
What is Polar?
The amount of energy that it takes to remove the outermost electron in an atom.
What is ionization energy?