Category 1
What is the element symbol for Calcium?
Ca
Water is made of these two elements.
Hydrogen and Oxygen
Ca2+ has how many electrons?
18
This rule states that a full valence shell is 8 electrons.
Octet Rule.
In an endothermic reaction, is heat absorbed or released?
absorbed.
A bond that has a sea of electrons and electricity passes through easily.
Metallic Bonding
The most electronegative element on the periodic table.
Fluorine.
A reaction that releases heat...
exothermic
The compounds or atoms on the left side of an equation are called...
reactants
What is the name of the strongest type of secondary interaction.
Hydrogen bonding.
Name the three types of primary bonding.
Covalent, Ionic, Metallic
The most abundant type of elements on the periodic table.
Metals.
Name the 3 types of secondary interactions.
Dispersion forces, dipole-dipole, hydrogen bonding.
___________ was the first to publish a system classifying elements (the periodic table) in 1869.
Dmitri Mendeleev
0.006024 has how many significant figures (sigfigs)?
4
The molecular shape of CH4.
Tetrahedral.
Atomic Radius ________ from left to right and ________ from top to bottom in the periodic table.
Decreases,
Increases.
I have a charge of negative two and I am a metalloid. Who am I?
Tellurium (Te)
This element has the LARGEST atomic radius:
Ba Ca N
Barium (Ba)
Calculate the number of moles (n) of material in 0.6 g of glucose, C6H12O6.
Molar Mass = 180.16 g/mol
0.0033 mol
The molecular shape of NCl3.
Trigonal pyramidal
Order the intermolecular forces from strongest to weakest.
hydrogen bonding, dipole-dipole, dispersion.
Organize the following elements from highest to lowest electronegativity: Carbon, boron, Fluorine, Chlorine.
Fluorine, Chlorine, Carbon, boron.
On Whiteboard.
Write the empirical formula for Iron (III) oxide.
Fe2O3