Covalent Bonds & Compound
What does a single bar mean when modeling that there is a covalent bond.
It is a single bond.
Do Ionic Compounds have relatively high or low melting and Boiling Points?
Relatively high
What are the rows called in the Periodic Table?
What is the max amount of valence electrons that a energy level can have?
8 valence electrons.
Polar molecules tend to ________ in water.
Dissolve
when unstable _____ nonmetal atoms bond together, they bond by sharing valence electrons. The atoms then form a covalent bond.
Nonmetals
The attraction between positively and negatively charged ions in an ionic compound is an _______
Ionic Bond.
The Periodic table organizes information about what?
Chemical Elements.
Valence are the only electrons involved in what?
Chemical Bonding.
What is a molecule that has a partial positive end and a partial negative end because of unequal sharing of electrons?
A polar molecules.
Each covalent bond contains how many valence electrons?
two.
True or False: Ionic Compounds are usually liquid and have a high viscosity at room temperature.
False.
Elements in columns are called what?
Families.
The ones digit of the group number is the number of what?
Valence Electrons that the element has.
A nonpolar compound will not easily dissolve in what?
Polar Compound. (but it will dissolve easily in other nonpolar compounds)
Are covalent compounds good conductors of thermal and electricity?
No, they are not.
Ionic compounds have no molecules. Instead they have a large collection of what charged Ions?
Oppositely charged ions.
Elements on the left side of the table are what?
Metals.
what is a Electron Dot Diagram?
A electron dot diagram is a model that represents valence electrons in an atom as dots around the element's chemical symbol.
If the electrons are pulled closer to one atom, that end of the molecule will have a partial negative charge and the other end of the molecule will have a partial _____ charge.
Positive.
Which is the strongest; a single, a double, or a triple covalent bond?
A triple covalent bond is the strongest.
Water that contains dissolved ionic compounds are good at what?
Conducting electricity.
Metalloids form a stair-step region between _____ and ______.
Metals and Nonmetals.
Who was the American Chemist that first used Electron dot diagrams?
Gilbert Lewis.