Chemical Reactions

Hey people i'm back and i'll be talking to you about chemical reactions. Did you know that chemical reactions happen around us all the time. A chemical reaction is even happening right now while you're reading this. Anyways, lets get back to what I was saying. The atom is a basic unit of matter that consists of a dense central nucleus surrounded by a cloud of negatively charged electrons. The atomic nucleus also contains a mix of positively charged protons and electrically neutral neutrons.

The nucleus is what is in the center of an atom. Shells are what electrons are on that surround the nucleus. Clouds are what happens when electrons spin around really fast. Now i'll be telling you about how many electrons can each shell hold. The first shell that is closest to the nucleus can hold two electrons. The second shell can hold eight, then the third can hold sixteen, then the fourth can hold thirty-two. Valence electrons are the electrons that are on the outermost shell.

Now i'll tell you the difference between when an atom is unstable and when an atom is stable. An atom that has a full shell is called stable. An atom the doesn't have a full shell is called unstable.



That's all for today people see you next week.

The Periodic Table

Hey guys i'm back and today i'll be talking about the periodic table of elements. You're probally wondering who made the periodic table and why. Well, the person who made was a scientist by the name of Dmitri Mendeleev, and he made the periodic table for elements, but he left spaces knowing some elements would be discovered after he died. The Periodic Table is a list of all the chemical elements that occur in the universe. It also categorizes elements according to the property of their atoms.Atoms are the smallest units of an element. They are made up of a nucleus composed of protons and neutrons and a number of electrons orbiting in different shells, or orbitals.

It's the numbers of protons, neutrons, and electrons in an element's atoms that determine its properties. The configurtion of these three particles is the only thing that makes one element different from another.

The modern periodic table of elements organizes elements so that it's easier to see how elements relate to each other. First you need to know how the elements are listed on the periodic table. The elements on the periodic table are listed by their atomic number, or number of protons in their atomic nuclei.

That's all for today people I might be blogging next week, PEACE.



Compounds and Mixtures

Heeeeeey i'm baaaack, and I have something else to teach you peeps about. Today i'll be talking about Compounds and Mixtures, and who thinks they know that compounds and mixtures can't get confused between each other. For some people that's true but for others it might not be that easy for them to not get confused between them, and trust I do too sometimes. Anyways, back to what I was saying, a compound is when a chemical change takes place, cool right, yeah not always. Sometimes those chemical reactions can harm the planet and they can also harm you.

Mixtures are when two or more elements, or compounds, are blended without combining chemically and ta-da you have a mixture. Oh and guess what else is cool, each substance in a mixture keeps its own properties. Mixtures can only be seperated by physical or mechanical means. An example of an homogenous mixture is a bottle of salt and salt crystals that have been dissolved in water.

Another example is trail mix, which has a mixture of many diferent things. Trail mix is a heterogeneous mixture and an example of a homogenous mixture is food coloring.