hey, visitors so here is a problem or i can say difference between single electron atom like hydrogen (H) He+ ,Li++ and other multi atoms like sulphur carbon.. take any of d-block

the energy levels differ in both cases and we will find out why !


the basic difference stand here is why bohr's model fails for multi-atoms ?

 because of the heisenberg uncertainty principle & the splitting orbital (the factor of today's case)

the splitting happen due to the repulsion of electrons and the difference between hydrogen and other multi-atom i also.


2s energy level is similar to 2p and 3d < 4s but if this is true then why d-block elements or any heavy atom violate this kind of filling?

the answer is because they follow afbau principle  'building up' as we all know the electron filling happen from lower to higher energy levels

Hey visitors, this is the second post of the day and with the first problem that i faced when i was in 11th standard dealing with the mathematical functions and some how one day the answer strikes in my mind. I was the lucky boy and 3 years later now i am going to explain this to you all so let's get started.


so first of all we will take a number for convenience let's take 0.04 the square root is 0.2

so which number is bigger 0.04 or 0.2 obviously 0.2  but how ? 

and the square of 0.04 is 0.0016 same as the square is smaller then the number.
 
so you get the question now it's time for answer

 let's first start with number concept natural numbers are the numbers found in nature except this all the numbers are there to define anything for example  -1,-2,-3... all the negative number means they are on the right side of co-ordinate axes


so what's with the number 0.01 ?


0.01 means that the number is 100 times smaller then the number which is taken as the standard or unit.

for example the S.I unit of the distance is meter soit is taken as unit 1 what about millimeter. It is something 1000times smaller then a meter so we can write it as 1/1000 of a meter or 0.001. this is the reason behind the existence of these decimal numbers.



so why the square is smaller ?

square,cube... generally refer to change in dimension of the number

for example 1m is 1000times larger then 1millimeter
so the square of 1m is the area of 1m^2 it's dimension is changed from length to area from 1D to 2D 

but the comparison scale is same now we are comparing an area of 1m^2 to an area of 1mm^2 


which is 10^6 or 1 million times smaller then the area of 1m^2 .

that means it took 1million  1mm^2 square box to make an area of 1 m^2


this is the only reason why the square is smaller because decimal scale are made to compare thing with unity 1mm is 1000times smaller then 1m in length comparison while 1mm^2 is 1million times smaller then 1m^2  for cube it will be 1billion times and so on...
i hope this diagram will explode your imagination 



Thanks for reading!

Hey There readers i am not guarantying you that you will become a great chemist after reading the article but the article is based on the fundamentals of the inorganic chemistry so you will be able to understand it upto some extent and then it's just practice and some bit you have to memories the results so let's get started.


The Inorganic chemistry deals with few basic fundamental reaction types and compounds like Oxides,Acids,Bases &Salts. let's start with types of reaction.



                                                                     Note...!!!!
Carefully Read The Article and then go back to s-block,p-block reactions you will be able to understand the reactions there.

A.TYPES OF REACTIONS:


                                                                                                                                                                                                                                 1.Combination Reactions: 

while Au (gold) Ag(silver) do not react with hydrochloric acid


2.Metal &Non-Metal displacement:
                                                         Ca + 2H20 --> Ca(OH)2 + H2              

                                                           4.Disproportionation reaction:
                                              4H3PO3 ------------> 3H3PO4 + PH3

 H3po3 in which phosphorus has the oxidation state of +3 disproportionate into higher and lower        oxidation state +5 and -3 this is the general criteria of dispoportionation.
some facts of dispoportionation reaction:

1. Fluorine cannot exhibit + oxidation state hence it does not show a disproportionation tendency
2. In the following oxo-chloride ClO(-) , ClO2(-),ClO3(-) & ClO4(-)

ClO4(-) does not disproportionate because the oxo anion chlorine is in highest state (+7)
                                            ClO2- (+3) ----> 4ClO3- (+5) + 2Cl- (-1)

                                                     ClO3(-) will break in +7 &-1
                                    so that's it for today will post a second part soon 

Here we go today i am going to explain How To Measure Earth's radius ? 

you just need a mountain & stop watch  don't able to afford a mountain alright just know the distance between two cities confused by the end of the article you will be able to understand everything just relaxed. So let's get started

Around the time 275BC there lived a greek Mathematician by the name of Eratosthenes born in cyrene (Modern day Libya).

So How Eratosthenes calculated earth's radius ?


1.Syene is at the tropic of cancer (sun rays straight overhead)
2.The earth is a perfect sphere


so 7/360 is equals to 800km of the circumference.

By this Eratosthenes able to calculate The circumference hence The radius of earth.

Pikachu performing Thunderbolt

Let's leave pikachu for a while and concentrate on a creature that exist in real life and performs thunderbolt by itself i am talking about the electric eel

Electric eel in Amazon

Some data's

1.Electrical eel's are able to generate current with biological cells called electroplaques which are physiological emf devices.

2. Each electroplaque has an emf of 0.15V & internal resistance (r) of 0.25 ohm

3.The water surrounding it has an resistance R = 800 ohm

4.The body of eel have 5000+ rows and 100+ column 140 in this case


As you see it is making itself a circuit.

The total resistance along the row is the sum of the internal resistance of 5000 electroplaques
Now circuit in parallel
R(eq) = 140/R(row) = 1250/140 = 8.93 ohm

1.E(row) - iR(water) - iR(eq) = 0

i = E(row)/R(water) + R(eq) = 750/800=8.93 = 0.93 A

Hey There readers, I am Shreyash Undergraduate Science student from small town of Ayodhya India. Through this post i am going to explain you what comes into my mind when i was about to create this blog.

Title ?

i always see the world of science as a timeline or simply a movie from the very beginning to newton to Einstein & hawking. What ever i  learnt what ever i see i want to put everything somewhere i want to share it with others. So here i am sharing through my blog the working of nature &story of greats. 


AIM:



when it comes to aim. i find that internet i filled with entertaining stuffs people love to get amused. But there are many who are using it to gain knowledge. Wikipedia is one of the finest platform for this &through this blog i want to share the amazing work functioning of nature by myself to those who are highly curious in it. Learning and sharing are the best things.


CAT Logo?

well for logo. I always see mathematics as the operating system of mother nature. This cat logo is inspired from scrodinger's cat. . 
 Austrian Physicist once working on quantum mechanics imagine that if we put a cat inside the box with a poison bomb which have 50% chance of getting exp load. then the chance of survival of the cat is 50-50. So before unboxing the cat is both dead and alive. the same is with quantum mechanical world the sub-atomic particles are both wave &particle and their existence is based on probability. The density of electron is replaced with probability density. this is the best example of mathematics in nature

Hey mates, this is my first post in this blog i am a blogger since 2011 and i am continuing my stuff in 2018 with new idea.

I am not a historian but know lil bit about the stuff. The islamic golden age lie somewhere from 8th century CE - 13th century CE. Th Empire expand from Arabian peninsula through Saharan Africa to Spain & portugal.The era believes in equality debate &logic the jew and catholics were also invited at baghdad to represent themselves. The vision were right and the open culture of islam was almost 600 years ahead of europe.

We witness some of the all time greats scientists &mathematicians here are some list of them

1. Muhammad ibn Musa al-Khwarizmi (780-850) CE

Born: khwarezm (Modern Iran)

Ever wondered who brought the Hindu-Arabic numerals to europe to replace the less accurate roman numerals. Yes the answer is al-khwarizmi.
his contribution on the working with Hindu numerals introduces Europe & middle east to algorithm.

2. Ibn al-Haytham (Alhazen) 945-1040 CE

Born: Basra,Iraq

The Father of Modern Optics The man who invented the first camera and my Favorite in the era. also known as the first true scientist.

during the period the old greek philosophy led the scientific world with the first true scientific experiment. He was the one who argue the fact on how we see things. He explained that the sun rays strikes any object reflected through it straight into our eyes so we able to see things.

Alhazen spend most of his life in cairo, egypt where he was given an administrative position but unable to fulfill his duties he was punished. To save himself from execution he show that he is sick and given a 10 years house arrest where he started observing the positions of stars and their locations.


during his life time he has written over 45 books & much more things which are another days topic.

for now thank you to the polymath

3. Jabir ibn Hayyan (721-815) CE

BORN: Tus, khurasan [Modern Day Iran]

 

Ever wondered how Alcohol Aldehyde , sulphur gets it's name well the answer is From the Arab In hayyam was the one who discovered the industrial gold sulphuric acid (H2S04) & Nirtic Acid (HNO3) Which use in modern day project the industrial strenght of any country.

There are a list of great philosopher,mathematician,surgeon's physicist and chemist. Some Honorable mentions are: 

  Omar Khayyam (1048–1131) mathematician &philosopher 

al-Zahawi (936–1013)  The First true surgeon

Ending: As i told you early i am not a historian the curiosity in science forced me to write this article i hope you all find it worthy keep visiting :) ;)!