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Welcome to the World of Chemistry:

Where everything around us; surrounds with particles that are unseen to the naked eyes.

Since this is my first time to make a blog so I will make some adjustments from time to time.

untitled — Properties of Elements in A Group or Family

To be honest with you, the way I talk is considered to be informal. I was going to share with you my powerpoint document though there were some technical issues had happened. So my best solution is just to take some screenshots of my document for you guys to see.

As you can see: 2 families are only ones to be given emphasis since this was just our last report in our General Chemistry I subject.

Group 17 and 18 are located on the right side of the periodic table of elements so there are both non-metals.

The first thing that is going to be discussed are the Halogens

To fully understand the the halogens, there is a short video for you to be witnessed.

https://www.google.com.ph/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0ahUKEwirn6jOxcnSAhUJxVQKHRVtAigQtwIIHjAB&url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DyW_C10cEzMk&usg=AFQjCNHljKQXjz4Ntf7BwbqwIkgwnLYgmw&bvm=bv.149093890,d.dGc

Halogens are non-metals wherein their outermost electrons in their electron configuration is actually 7 (ns2np5). The first 5 members are in fact diatomic elements. So the halogens by the way are Fluorine, Chlorine, Bromine, Iodine and Astatine.

FLUORINE

Fluorine (F) with an atomic number of 9, its property is pale-yellow in a gaseous state, puple in solid, very reactive and at the same time, toxic. But is is commonly used in dental purposes; a vital ingredient in making toothpaste, not purely as fluorine but as a compound particulary calcium fluoride.

CHLORINE

Chlorine (Cl) is a greenish-yellow gas which is also toxic and used as a poison gas in warfare. Though it was decades ago, these days used chlorine in cleaning antiseptic purposes in.

BROMINE

IODINE

ASTATINE

AGAIN THE HALOGENS

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GROUP VIII (18): THE NOBLE/INERT GASES

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Similar to Halogens, Noble or Inert Gases are also non-metals wherein their outermost electrons in their electron configuration is now 8 (ns2np6). They are extremely stable monoatomic gases in nature. They exhibit little or no reactivity at all; although compounds of Krypton and Xenon have been prepared. So the noble gases are Helium, Ne on, Argon, Krypton, Xenon, and Radon. untitled

So there you have it: The Halogens and the Noble Gases

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