+ minerals september 6 - september 13 chapter 2 quiz on monday

+ Minerals

September 6 -September 13

Chapter 2

Quiz on Monday

+Announcements

Your Element Chart is due today

Your article reports are due tomorrow

Your vocabulary is due Friday

You will have a quiz Monday

+2. Isotopes and BondingComplete the following chart and then answer the

questions below:

Symbol Atomic Mass

# Neutrons

# Protons

Element Name

C-12 12 Carbon

C-14 14 Carbon

7 Nitrogen

8 Nitrogen

O-17

16 8

1. Is it possible for two different elements to have the same mass?

2. Is it possible for the same element to have two different masses?

+2. Isotopes and Bonding

__________of elements will have different ________ massesWhich means they have the same

number of ________ Different numbers of ________

Many isotopes are ________ and give off energy and particles


Density is a distinguishing characteristic of different types of matter (helps us tell them apart)

Density = ________ ÷ ________ for any compound or mineral

D = m ÷ v


Use the periodic table to solve for these problems:

1. What is the density of the element Sulfur if there are 2 mL of it?



2. What is the density of Vanadium if there are 5 mL of it?



3. What is the volume of Neon if the density is 10 g/mL?


Why do atoms bond? ________

________ consist of two or more elements that are chemically combined (________ ) in ________ proportions ________ are the simplest structural units of

compounds


________________ are the electrons that are in the highest ________________of the electron cloud

The energy levels are “full” when they have the following numbers of valence electrons Energy level 1 = 2 (applies to ________ and ________

only) Energy level 2 and up = 8 (pretty much

________________)

If the energy level is not “full” an atom will want to ________electrons to make it happen.


As a result of gaining, sharing, or losing electrons- atoms will ________ together which makes them more ________

Whether something gains, loses, or shares will depend on the ________ It just so happens that you can also figure

out how an atom will bond based on whether it’s a ________

+2. Isotopes and Bonding Metals

Elements that are on the ________ hand side of the periodic table are ________

________ of the periodic table is metals These are colored ________ on the table in the back of

your book Tend to ________ electrons

Nonmetals Elements that are on the ________ hand side of the

periodic table are ________ ________ of elements are nonmetals, but they are very

common elements These are colored ________ on the table in the back of

your book Tend to ________ electrons


1. Na

2. Sr

3. O

4. Cl

5. Hf

6. As

7. P

8. Xe

9. Fe

10. He

11. Li

12. Ni

Identify the following as metals or non-metals


Ionic Bonds Electrons have a ________ charge Protons have a ________ charge When electrons are lost or gained, an

________ is formed Ions are ________

When a ________ and a ________ combine, an ________ is formed

Form between ________


Metallic BondsMetals lose electrons ________ They tend to share electrons

________________ - like a ________ of electrons being passed around

When ________ bond together it is a ________ bond

+2. Isotopes and Bonds

Covalent BondsNon-metals like to ________ electrons

2 or more non-metals will ________ electrons because they both want the electron

______ bonds form between _______


1. NaCl

2. KCl

3. H2O

4. AlZn

5. HCl

6. CO2

7. MgO

8. Cu (many atoms of this)

Figure out the bond type by1st: determining whether each element is a metal or non-metal2nd: use that information to tell you the bond type

+ minerals september 6 - september 13 chapter 2 quiz on monday

Documents