Chemical Bonds

Compounds

100

What is the total number of atoms in the following compound?

NaOH

3

200

Are the properties of a compound the same or different from the properties of the elements that make up the compound?

Different

300

How many DIFFERENT atoms are in the following chemical formula?

MgCl₂

2

400

What is the total number of atoms in the following chemical formula?

C₆H₁₂O₆

24

500

What is the total number of atoms in the following chemical formula?

Mg₃(PO₄)₂

13

Atomic Structure and Stability

100

How many TOTAL valence electrons do MOST atoms want to have to have a full outer energy level?

8

200

How many valence electrons do Noble Gases have?

8

300

What is the oxidation number of Sulfur?  

(You MUST include the sign)

-2

400

How many MORE valence electrons does oxygen need to have a full outer shell?

2

500

What kind of element is Calcium (metal, nonmetal, or metalloid)?

Metal

Ionic Bonds

100

What element types does an ionic bond form between?

Metals and Nonmetals

200

In terms of electrons, what occurs during an ionic bond?

Valence electrons are taken from metals, and received by non-metals.

300

When an ionic bond forms, what is the overall charge of the compound?

0 (Neutral)

400

When magnesium forms an ionic bond, what is its charge?

+2

500

Write the chemical formula for the compound created when aluminum forms an ionic bond with sulfur:

Al₂S₃

Covalent Bonds

100

What element types does a covalent bond form between?

2 nonmetals

200

In terms of electrons, what occurs during a covalent bond?

Electrons are shared between 2 non metals

300

If 6 electrons are being shared between 2 atoms, how many bonds have formed?

3

400

Draw an electron dot diagram for the compound that is formed when 2 nitrogen atoms bond together.

(Drawn In)

500

Write the chemical formula for the compound created when hydrogen forms a covalent bond with sulfur:

H₂S

Polar Vs Nonpolar Molecules

100

If the elements in a compound are NOT equally sharing electrons, the compound is: Polar/Nonpolar

Polar

200

If the elements in a compound ARE equally sharing electrons, the compound is: Polar/Nonpolar

Nonpolar

300

When 2 oxygen atoms bond together, will they form a polar or a nonpolar compound?

Nonpolar

400

When 2 hydrogen and 1 oxygen atoms form a compound, will they form a polar or a nonpolar compound?

Polar

500

If Chlorine and hydrogen form a polar compound, which atom will have a slightly negative charge?

Chlorine