Isotopes are different types of chemical element composition of the nucleus

Date:

2018-04-01 02:00:09

Views:

727

Rating:

1Like 0Dislike

Share:

Table of contents:

The Memory of man is built on the associative and logical connections. Why is it important for us to organize reality, to distribute its elements on the cell and find the system. Otherwise, the memory refuses to obey, and mind – to analyze. It is no coincidence that in the history of chemistry such an important breakthrough is the creation of the periodic table – order, system, and logic triumphed. The effect of this discovery was so great that inspired many. For example, lyubischev, the genius of the Russian time management, developed my own system in order to create a periodic table of living organisms. This goal was not achieved, but the fact proves the importance of logic to the understanding of man. But the reality is richer and beautiful schemes. For example, in the key table, chemistry some elements are out of order by mass. Why? You can answer in one word – “isotopes". This word literally means “occupying one place”.

isotopes it

Work for many, remember not all

Periodic table – a fruit of laborious work of many scientists, not just its Creator. He ingeniously created the principle and found the basic laws. But the figure of masses that you see under each item – the fruit of the work of many chemists, and besides, it is inaccurate. How can this be? Perhaps you ever noticed that atomic number – beautiful integer. But the mass-fractional with a huge number of decimal places. Why? And blame those same isotopes. This is explained quite simply. If you look at the numbers for the item "nitrogen" of the near figures the atomic weight you will see 14,0067. However, if you “catch” the free nitrogen atom, it may weigh 10, 25 atomic units. They are different. And what is this difference? The isotope mass consists of the mass of protons and mass of neutrons. The mass of protons – a constant, it does element by element (nitrogen-nitrogen). But with neutrons, the atom can be both rich and poor. In the case of nitrogen there may be 18 and only 3 pieces. Isotopes – types of atoms of the element depending on the number of neutrons in the nucleus. The nitrogen 16 isotope is found. Some other elements sometimes more.

Recommended

"Knowledge is light and ignorance is darkness": the value, meaning and alternatives

There are some sayings that would seem to need no explanation, such as “teaching & ndash; light and ignorance – darkness”. But some still do not understand their meaning. But not only for such people is written by our article. I...

What was invented by Mendeleev for the army. The history and fate of the invention

What was invented by Mendeleev for the army. The history and fate of the invention

D. I. Mendeleev was a brilliant Russian scientist-polymath, who made many important discoveries in various fields of science and technology. Many people know that he is the author of “Fundamentals of chemistry" and the periodic law of chem...

The origin of the Slavs. The influence of different cultures

The origin of the Slavs. The influence of different cultures

Slavs (under this name), according to some researchers, appeared in the story only in 6 century ad. However, the language of nationality bears the archaic features of the Indo-European community. This, in turn, suggests that the origin of the Slavs h...

And what about the scientist?

the nucleus of the isotope

If you were scientists, what would you do? How would add a lot to the table for the calculations? You could, of course, take the arithmetic mean. But many isotopes – objects are highly unstable, some of them are – artificially created. Therefore, it is inappropriate to conduct calculations with a focus on inaccurate data. Scientists have done differently – they calculated the atomic mass of an element is proportional to the natural distribution of a particular isotope. In the end, the probability that in a random search, you came across was the isotope 14 mass units, is very large. The nucleus of the isotope, was found by accident, most likely, will contain 7 protons and 7 neutrons.

Causes inaccuracies

mass of isotope

Why is atomic mass not exactly accurate? Because the conclusion it made inductively – from private to General. We don't know the exact composition of the Earth beneath the crust, we haven't explored geologically even just the entire surface of the Earth. Therefore, the figure of the atomic mass – probabilistic. It is based on the knowledge that people have today. Why are scientists satisfied? Because greater precision is needed only for molecular physics, for the banal calculations of the amounts of error can be neglected. But the disturbance at the mass objasalsa the fact that the chemical properties of matter the number of charged particles - protons. And that is the number of protons the element and arranged in series.


Article in other languages:

AR: https://www.tostpost.com/ar/education/2789-isotopes-are-different-types-of-chemical-element-composition-of-the-nu.html

BE: https://www.tostpost.com/be/adukacyya/4946-zatopy---geta-roznyya-v-dy-h-m-chnaga-elementa-pa-skladze-yadra.html

DE: https://www.tostpost.com/de/bildung/4944-isotope-sind-verschiedene-arten-von-chemischen-elements-in-der-zusamme.html

ES: https://www.tostpost.com/es/la-educaci-n/4949-los-is-topos-son-diferentes-tipos-de-elemento-qu-mico-de-la-composici-.html

HI: https://www.tostpost.com/hi/education/2790-isotopes-are-different-types-of-chemical-element-composition-of-the-nu.html

JA: https://www.tostpost.com/ja/education/2789-isotopes-are-different-types-of-chemical-element-composition-of-the-nu.html

KK: https://www.tostpost.com/kk/b-l-m/4947-izotoptar---b-l-r-t-rl-himiyaly-elementt-ramy-boyynsha-yadro.html

PL: https://www.tostpost.com/pl/edukacja/4949-izotopy---to-r-ne-rodzaje-pierwiastka-w-sk-ad-j-dra.html

PT: https://www.tostpost.com/pt/educa-o/4946-is-topos-de-diferentes-tipos-de-elemento-qu-mico-de-composi-o-do-kerne.html

TR: https://www.tostpost.com/tr/e-itim/4952-zotoplar-farkl-bir-t-r-kimyasal-element-bile-imi-ekirdek.html

UK: https://www.tostpost.com/uk/osv-ta/4949-zotopi---ce-r-zn-vidi-h-m-chnogo-elementa-za-skladom-yadra.html

ZH: https://www.tostpost.com/zh/education/3014-isotopes-are-different-types-of-chemical-element-composition-of-the-nu.html






Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

Comments (0)

This article has no comment, be the first!

Add comment

Related News

The guard - who is this? Where did the word and what it means?

The guard - who is this? Where did the word and what it means?

Probably not just in movies or TV shows have you heard the word “guard”. It's a prison warden, an overseer, an employee of a private institution – in the opinion of the authors of dictionaries. But very few peopl...

Union of salvation - education background and history of development

Union of salvation - education background and history of development

the First of the secret organizations of the future Decembrists was the Union of salvation, organized in early December 1816. The community was originally called differently – “the Society of true and loyal sons of the...

The formation of Mongol power: the causes, course, results and consequences

The formation of Mongol power: the causes, course, results and consequences

the Formation of Mongol power historians refer to 1206. Its gains were enormous: China, all of Central Asia, the Caucasus, Russia, middle East, Hungary. The final collapse can be considered as 1480, when the tribes lost their figh...

Student-nihilist Bazarov: the image in the novel

Student-nihilist Bazarov: the image in the novel "Fathers and sons"

the plot of the novel Turgenev's "Fathers and sons" came from the author in 1860, when he was resting in the summer on the Isle of Wight. The writer has compiled a list of actors, among whom was the nihilist Bazarov. The character...

Who are the Sarmatians and what they were doing?

Who are the Sarmatians and what they were doing?

the Sarmatians – a group of Iranian-speaking tribes that roamed the steppes of modern Ukraine, Russia and Kazakhstan in ancient times. This people appeared in the VI century BC, and in IV century BC virtually disappeared fro...

Glucose: chemical properties standard

Glucose: chemical properties standard

The simplest of sugars, the universal currency of energy exchange, which the brain prefers and respects the heart muscle. If a person has violated the monitoring mechanisms and the level of glucose in the blood falls below certain...