"Why Big Fr and Hungry F"

Why Francium is the biggest element with the lowest IE and EN?

Francium is the element with the most shells with only one valence electron. This tells us that the attraction between the valence shell and the nucleus is low. The reason for which it has the lowest ionization energy and electronegativity is because of its size. Because it is the largest atom,its capability of gaining an electron is low. This means it also requires very low amount of energy to lose electrons.

Why Helium is the smallest element with the highest IE?

Helium is the smallest element on the periodic table. This element has one shell that's full, therefore the attraction between the valence shell and the nucleus is the greatest. Since it is the smallest element the ionization energy is low. The attraction between the nucleus and the electrons is the greatest.Helium has the fewest shells.

Why Noble Gases don't have EN values?
The noble gases have no need for any other electrons. Their full valence shell means that they dont need to gain or lose any electrons.Therefore they have no elcetronegatitivity. \

Why Fluorine has the highest EN ?
Flourine has the highest electronegativity. This is because it is the smallest element. It needs the greatest amount of energy to lose an electron because its attraction between the valence elctrons and the nucleus are also the greatest.

IODINE is element #53

iodine:
My name in 3 different languages
                    -Latin: Iodum
                    -Croatian: Jod

                    -Portuguese: Iôdo
How did I get my name?
       violet puff in the air.
What does it mean?
        comes from the latin word ioeides,which means violet
        or the greek word iodes 

 What do I look like as a pure element?

                

My nucleus:

           most common isotope:iodine-131

           number of protons in the most common isotope:53

           number of neutrons in the most common isotope:78
           number of naturaully occuring isotopes:iodine-127
           iodine-127's half life:stable
           natural abundance:rare
           number of electrons in a neutral atom:53
           how many shells of electrons:2  

My atom:

           atomic radius:140pm

My properties:

           properties in my pure elemental form:blue-ish black solid

My home:

           abundance in the body:0.0107144

           abundance in the earth's crust:490ppb by weight

           abundance in the universe:1ppb by weight

My compounds:

mercury iodide

        

strontium iodide

                    

          

     

My story:

It was an accident!Bernand Courtois was making saltpeter( a major component in gun powder) when he acccidently added too much acid.The effect was a purple puff emerging into the air. This all occured in France in 1811.

My Jobs:

medicine,photography,nutrition

Bet ya didn't know..

When dissolved in alcohol,iodine is a powerful anteseptic germicide.

My reference

www.webelements.com

www.wikipedia.org

my broad and majestic blog

Howdy,my names Leslie!
this is my blog(=
It will be very broad and majestic,but not like a pony

Things I love:playing soccer,food,&my chemistry class<3

What I dream to accomplish:i have no clue....yet