3/1/2010

[walking towards the door]

[im talkin to him..and he brushes up and leans against me on the left]

[he puts his chin on the left shoulder]

RL: haha whats up??? 

me: you listen to country right?

RL: haha yuppp

[still on my shoulder] 

me: so you watch CMT??

RL: all the time!!

me: haha ok so I was watching The Singing Bee one day haha

[he got off the shoulder and started laughing]

me: hahaha and a kenny chesney song came up and i was sooooo excited i like fell off my bed and banged my knee 

RL: hahahahahahaha!!!!! OMG ALLYSON thats funny!! hahaa

[opening the door]

RL: KENNY CHESNEY IS WHERE IT'S AT! I mean....CMT IS WHERE IT'S AT!

me: ALWAYS!!

My Dream:

We were in school and I was with him the whole time in the media center and I asked him questions and made small talk and we hung out. Then all of a sudden it was a basketball game for little kids and he was on the sideline (with a plain white t-shirt and jeans AMAZING) and I stood with him and we talked and then it was half time and we went to get a snack and I HAD to go home so he let me use his phone then we did our handshake and hugged then my dad picked me up and that was it :) 

Classifying Matter...

Mixture

-two of more substances that are not chemically combined with each other and can be seperated by physical means. The substance in a mixture retain their individual properties.

Solutions

-a special kind of mixture where one substance dissolves in another

Elements

-simplest form of a pure substance. They cannot be broken down into anything else by physical or chemical means.

Compounds

-pure substances that are the unions of two or more elements. They cannot be broken into simpler substances by chemical means.

Heterogeneous Mixtures

-least mixed
-large particles

Homogeneous Mixtures

-most mixed
-"well mixed"
- appears to be uniform (the same) throughout
-small particles

Colloids

-particles mixed together/ not dissolved
-large particles/ permanently suspended
-will not separate upon standing
-Ex.Shaving cream; jello

Solutions

-one substance dissolves into another
-(homogeneous mixture)
-best mixed
-have solute and solvent
*Solution=When 1 substance dissolves into another
*Solute=Being dissolved
*Solvent=Thing dissolving solute

Elements

-the simplest purest substance
-Atoms together=element
-combines together
-element+element=compound
Example: Making brownies (:
*ingredients=elements
brownie=compound

Compounds

-More than 1 element
-pure substance
-Ex: Water = hydrogen+oxygen

Alloys

-metals dissolved into metals
-pure substance (element)

Types of Solutions

Solute,Solvent,Example:
Gas+Gas=Air (O in N)
Gas+Liquid=Soda Water (CO2 in H2O)
Solid+Liquid=Ocean Water (Salt in H2O)
Solid+Solid=Gold Jewlery(Cu in Au)

Global Economic Downturn

Global Economic Downturn

EIA-Energy Information Administration

IPCC-Intergovernmental Panel on Climate Change

I believe that the more people really don't care about this issue the more we are in danger. Just like how if 1 German was caught helping a Jewish person during the time of the Nazis, then many Germans including that 1 person would get killed even if they were innocent.

There maybe that 1 person who is killing our planet and once that action has taken into effect, it could cause harm to many individuals who are innocent and really care about living on this planet. 

Video:

Made by: Me

Song: The Man Who Can't be Moved-The Script

Resources: 

http://www.eia.doe.gov/

http://www.reuters.com/

http://www.ipcc.ch/

iMovie

Atoms and Isotopes Questions

Question:

Examples of Isotopes: 

Carbon 11 has 6 protons and 5 neutrons. [unstable]

Carbon 12 has 6 protons and 6 neutrons. [stable]

Carbon 13 has 6 protons and 7 neutrons. [stable]

Carbon 14 has 6 protons and 8 neutrons. [unstable]

-What makes Carbon 12 and 13 stable? What makes Carbon 11 and 14 unstable?

. From my recent research, I found that if the number of neutrons compared to the number of protons in an isotope is too much or too little, the isotope is unstable, or radioactive. 

  - But if in Carbon 13, there are 6 protons and 7 neutrons and is stable then why isn't Carbon 11 stable if there are 6 protons and 5 neutrons in that isotope?

Question:

Technetium and Promethium have no stable isotopes at all.

Tin has 10 stable isotopes.

-Because Technetium and Promethium have no stable isotopes at all, does that mean they are both very dangerous and radioactive? Why were they eventually put into the Periodic Table of Elements?

-Because Tin has 10 stable isotopes, does that mean that it is the most safest isotope?

Question:

The Electron Balance:

The 1st shell of an atom can contain 2 electrons.

The 2nd & 3rd shells of an atom can contain 8 electrons.

That makes 18 electrons in all at the maximum.

-For example, Aluminum has an atomic number of 13. 2 electrons are in the 1st shell, 8 electrons are in the 2nd shell, and 3 electrons are in the outer shell. [Which makes 3 the electron balance]

   If Calcium has an atomic number of 20, there would be 2 electrons in the 1st shell, 8 electrons in the 2nd shell, and 8 electrons in the 3rd shell. That leaves 2 electrons left. Where are they? What is the electron balance?

Metals, Non-Metals, Metalloids

Metals
.shiny, solid (at room temperature)
.mallable-can be shaped
.high conductivity (good conductrors)(heat of electricity)
[Periodic Table:farther to the left->low, farther to the right->high]

Non-Metals
.not shiny
.not good conductors
.mostly gases
.brittle
.weak/easy to break
[Periodic Table: farther to the left->high, farther to the right->low]

Metalloids
.solid
.brittle
.hard
.semi-conductors
.important to computer chips
.silicon-in glass and sand
[Periodic Table: between metals and non-metals]

Facts:
Carbon-important element for making up living organisms.
Noble Gases-group 18- very non-reactive. Have full outer shells
Silicon Valley-place where all major computer makers are.

Reactivity

-the ease and speed with which an element combines, or reacts, with other elements or compunds.
-groups and families have similar reactivity.
.group 1-metal react violently with water
.group 18-gases that barelt react at all.

-# of protons=# of electrons=0 charge

-electrons orbit in "shells"
.1st shell can only fit 2 electrons
.2nd&3rd ring can fit 8 electrons
-atoms want their shells to be full.

Organization of the Periodic Table

Atomic Number

-the number of protons in the nucleus
-tells us the identity of the element

Isotopes

-atoms with the same number of protons but different numbers on neutrons
-Example: Carbon
.Carbon-11
6 protons
5 neutrons
unstable

.Carbon-12
6 protons
6 neutrons
stable

.Carbon-13
6 protons
7 neutrons
stable

.Carbon-14
6 protons
8 neutrons
unstable