Chemistry First Semester

Ionic Bonding

100

An ionic bond contains a positive atom (cation), and a negative ion ____________________

anion

200

Ionic bonds are formed when atoms _______________ electrons to form ions.

Transfer, lose or gain electrons

300

What is the suffix that tells you a compound is ionic? (the anion has this suffix)

-ide

400

This type of ion is made of multiple atoms that stay together during most chemical reactions. Example is NO₃^-1

polyatomic ions.

500

What elements are most reactive in the periodic table and tend to make strong ionic bonds with nonmetals?

Column 1 or 1A

Molecular Formulae

100

Molecular formula of carbon tetrafluoride

CCl₄

200

A molecular formula gives the ________________ of elements in a compound

Ratio

300

The elemental ratio of water is ___________________

2:1 Hydrogen to Oxygen

400

This number tells you how many of each atom are in a compound

Subscript

500

What is the common name of the molecule CH₄

methane

Covalent Bonding

100

What is the octet rule?

molecules wanting to achieve 8 electrons to become stable.  

200

What do electrons do in order to make a covalent bond?

share electrons

300

Ammonia's molecular formula?

NH₃

400

Covalent molecules are modeled with the use of what diagram that uses dots to represent electrons?

Lewis structures

500

What are the outer electrons in an atom called?

valence electrons

Elements

100

Two elements that are liquid at room temp

Hg and Br

200

Ionic charge of Sr?

+2

300

When magnesium chloride forms, what is the ration of magnesium to chloride atoms?

1 Mg : 2 Cl

400

What element is represented by 3p³

P

500

Most of the lanthanides in the periodic table are name after people, while most actinides are named after...

places or planetary bodies

Molecular Geometry

100

Molecular geometry requires how many dimensions to properly represent the structure of molecules

3 dimensions

200

Molecules seek to arrange their atoms in a way that maximizes the __________________ between atoms

Bond angles

300

What shape would you expect from the H₂S formula?

angular

400

In a structural diagram of a molecule, what does each bond represent?

2 electrons

500

Bond angle between atoms that surround carbon in methane (CH₄)

109.5 degrees

Miscellaneous

100

HS football team in NE Nebraska with longest current consecutive streak of making the playoffs.

Bloomfield Bees

200

Mascot of Amherst HS team in Nebraska

Broncos

300

Holds the record for aces in one season in C1 - played for the Raiders 

Jordan Larson

400

Molly Hill, from this C1/B northeast Nebraska school has the ERA record for a season in high school softball - 0.00

Wayne Blue Devils

500

What is the only man made structure visible from space?

Great China Wall