EMC
This is the meaning of C-E-R
What is claim, evidence, reasoning?
This is the particle that identifies an element
What is the number of protons?
The elements in Group 18 are called this
What are the Noble Gases?
This is the name for the diagram representing the Valence electrons of an element or compound
What is a Lewis dot structure?
This is the meaning of a right arrow: -->
What is yields?
This is a substance that is not uniformly mixed
What is a heterogeneous mixture?
This is the sum of protons and neutrons in a specific atom of an element
What is mass number?
These are the horizontal rows on the periodic table and the information we know by looking at them
What are periods and energy levels?
This is the basis for an ionic bond.
What is electrons are transferred between a metal and a nonmetal?
When two elements or ions switch places in a reaction
AC + BD ----->AB + CD
What is double replacement reaction?
Pure substances
What are elements and compounds?
An atom with 8 protons, 8 neutrons, and 8 electrons is an atom of this element.
Oxygen
This is the oxidation number for group 16
What is -2?
This is the type of bond produced by sharing electrons
What are covalent bonds?
Reactions that release energy
What is exothermic?
Examples include flammability and reactivity
What is chemical property?
12 protons and 10 electrons makes this
What is an ion of magnesium or Mg+2?
This is the trend for atomic radius on the periodic table
What is radius increases down a family and decreases across a period?
This is the electronegativity difference in ionic bonding
What is a big difference in electronegativity?
A substance present before a chemical change
What is a reactant?
This is the separation of a mixture into parts based on density and flow
What is chromatography?
This is main role of EMF in an atom
What is holding electrons in orbit around the (positive) nucleus?
This is the trend and reason for reactivity in metals
What is reactivity increases down a family of metals b/c valence electrons are farther away and more easily lost (not held onto as tightly by EMF)?
These are the forces involved in polar covalent bonding.
What are both intermolecular and intramolecular forces?
The products of a neutralization reaction.
What are salt and water?