Lewis Dot
Draw the lewis dot structure for an atom of Hydrogen
*H with one dot*
Draw a lewis diagram for an ion of sodium
[Na]+
If an unknown substance is found to melt at low temperature, it is most likely.... (ionic or covalent)
Covalent
Metals are ________________, meaning they can pass an electric current through them.
Conductive
In an ionic bond, an electron is ________________ between a metal atom and a nonmetal atom
Transferred
Draw a lewis dot structure for an atom of arsenic
As *5 dots- 1 pair, 3 unpaired*
Draw the lewis dot structure for a nitrogen ion
[N]3- *with 8 dots around N*
An unknown substance is liquid at room temperature and does not conduct electricity. It is most likely....
Covalent
Metals are ___________, meaning they can be stretched into thin wires
Ductile
In a covalent bond, valence electrons are _________________ between multiple nonmetals
Shared
Draw a lewis dot for an atom of Xenon
Xe with 8 dots (4 pairs)
Draw a lewis dot structure for an ion of Aluminum
[Al]3+
Corals form a skeleton made of calcium carbonate (CaCO3). What type of compound is this?
Ionic
Metallic compounds contain electrons with are _______________, or not attached to a particular nucleus.
Delocalized
On an atomic level, this type of substance looks like a cloud of electrons swarming freely through a lattice of positively-charged nuclei
Metallic
An element has 6 valence electrons. How many PAIRS of electrons will there be on its lewis dot diagram?
2 (and 2 unpaired electrons)
An ion's lewis dot diagram has 8 dots and a charge of -2. What column is the element in?
column 16
Covalent compounds do not increase conductivity when in solution, because they do not form ____________ (or charged particles).
Electrolytes
Metals are _________________, which is why they can be hammered into thin sheets
Malleable
This type of compound is made of units called "molecules"
Covalent compound
A new element X is discovered and classified as a halogen (column 17). Draw the lewis dot structure for element X.
X w/ 7 dots (3 pairs, 1 unpaired)
Draw the lewis dot structure for a carbon anion
[C]4- (with all 8 dots)
I have three beakers containing water, salt, and sugar, respectively. How might I combine them in a way that would increase the conductivity of the water.
Add the salt to it
This is the type of alloy formed when a nonmetal with smaller atoms is combined with a metal. The nonmetal atoms fit within the matrix of metal nuclei
Interstitial Alloy
On an atomic level, this consists of many delocalized electrons swarming around differently-sized nuclei
Metal alloy