Cerium (Ce) is a chemical element with atomic number 58 and belongs to the lanthanide series. It has several isotopes, which are variants of the element with the same number of protons but a different number of neutrons. The isotopes of cerium are: 1. **^136Ce** - Stable isotope with 78 neutrons. 2. **^138Ce** - Stable isotope with 80 neutrons.
Chromium has several isotopes, which are variants of the element with the same number of protons but different numbers of neutrons. The most notable isotopes of chromium are: 1. **Chromium-50 (⁵⁰Cr)**: This is the most abundant isotope, making up about 4.3% of natural chromium. It has 24 protons and 26 neutrons.
Fermium (Fm) is a synthetic element with the atomic number 100. It is part of the actinide series in the periodic table. Isotopes of fermium are all radioactive, as fermium has no stable isotopes. The most notable isotopes of fermium include: 1. **Fermium-257 (Fm-257)**: This is the most stable isotope of fermium, with a half-life of about 100.5 days.
Gadolinium (Gd) is a lanthanide element with atomic number 64 and has several isotopes. The most common isotopes of gadolinium include: 1. **Gadolinium-152 (Gd-152)**: This isotope has a natural abundance of about 0.14% and is stable. 2. **Gadolinium-154 (Gd-154)**: A stable isotope with a natural abundance of approximately 2.17%.
Hassium (Hs) is a synthetic element with the atomic number 108. It is a member of the transactinide series of elements and is classified in Group 8 of the periodic table. As of my last knowledge update in October 2023, hassium has a few known isotopes, with all of them being radioactive.
Iron has several isotopes, which are variants of the element that have the same number of protons but different numbers of neutrons. The most stable and commonly occurring isotopes of iron are: 1. **Iron-54 (\(^{54}Fe\))**: This is the most abundant stable isotope, making up about 5.8% of natural iron.
Lead has four stable isotopes and several unstable (radioactive) isotopes. The four stable isotopes of lead are: 1. **Lead-204 (\(^{204}\)Pb)**: This isotope has 82 protons and 122 neutrons. It is the least abundant stable isotope of lead. 2. **Lead-206 (\(^{206}\)Pb)**: This isotope has 82 protons and 124 neutrons.
Meitnerium (Mt) is a synthetic element with the atomic number 109 and is classified as a transactinide element in the periodic table. It is named in honor of physicist Lise Meitner. Due to its short half-life and the limited amount produced, there are only a few known isotopes of meitnerium.
Neon has three stable isotopes: 1. **Neon-20 (¹⁴Ne)**: This is the most abundant isotope, making up about 90.48% of natural neon. It has 10 protons and 10 neutrons. 2. **Neon-21 (¹⁵Ne)**: This isotope is much less common, accounting for about 0.27% of natural neon. It has 10 protons and 11 neutrons.
Nitrogen has several isotopes, which are atoms of the same element (nitrogen) that have the same number of protons but different numbers of neutrons. The most common isotopes of nitrogen are: 1. **Nitrogen-14 (\(^14N\))**: This is the most stable and abundant isotope, making up about 99.6% of natural nitrogen. It has 7 protons and 7 neutrons.
Potassium has several isotopes, but the most notable ones are: 1. **Potassium-39 (⁴⁰K)**: This is the most abundant isotope, making up about 93.26% of natural potassium. It is stable and does not undergo radioactive decay. 2. **Potassium-40 (⁴⁰K)**: This isotope is radioactive and makes up about 0.012% of natural potassium. It has a half-life of approximately 1.
Rhodium (Rh) has several isotopes, but the most notable ones are: 1. **Rhodium-103 (Rh-103)**: This is the only stable isotope of rhodium and makes up nearly all naturally occurring rhodium. It has a nuclear spin of 1/2 and is commonly used in various applications, including catalytic converters and jewelry.
Rubidium (Rb) has several known isotopes, with the most notable ones being rubidium-85 (¹⁸⁵Rb) and rubidium-87 (¹⁸⁷Rb). Here are some details about these isotopes: 1. **Rubidium-85 (¹⁸⁵Rb)**: - **Natural Abundance**: Approximately 72.2% of natural rubidium is ¹⁸⁵Rb.
Silicon has several isotopes, which are variations of the silicon atom that have the same number of protons (14) but different numbers of neutrons. The stable isotopes of silicon are: 1. **Silicon-28 (Si-28)**: This is the most abundant isotope, making up about 97.2% of natural silicon. It has 14 protons and 14 neutrons.
Strontium has several isotopes, but the most notable ones are: 1. **Strontium-84 (Sr-84)**: This is the most abundant stable isotope of strontium, making up about 0.56% of naturally occurring strontium. 2. **Strontium-86 (Sr-86)**: This is another stable isotope, comprising about 9.86% of natural strontium.
The Tables of Nuclides, also known as nuclide charts or nuclide diagrams, are comprehensive graphical representations that display information about the various isotopes (nuclides) of chemical elements. Each nuclide is characterized by its number of protons (atomic number), number of neutrons, and its nuclear properties, such as stability, half-life, decay modes, and abundance.
Pinned article: ourbigbook/introduction-to-the-ourbigbook-project
Welcome to the OurBigBook Project! Our goal is to create the perfect publishing platform for STEM subjects, and get university-level students to write the best free STEM tutorials ever.
Everyone is welcome to create an account and play with the site: ourbigbook.com/go/register. We belive that students themselves can write amazing tutorials, but teachers are welcome too. You can write about anything you want, it doesn't have to be STEM or even educational. Silly test content is very welcome and you won't be penalized in any way. Just keep it legal!
Intro to OurBigBook
. Source. We have two killer features:
- topics: topics group articles by different users with the same title, e.g. here is the topic for the "Fundamental Theorem of Calculus" ourbigbook.com/go/topic/fundamental-theorem-of-calculusArticles of different users are sorted by upvote within each article page. This feature is a bit like:
- a Wikipedia where each user can have their own version of each article
- a Q&A website like Stack Overflow, where multiple people can give their views on a given topic, and the best ones are sorted by upvote. Except you don't need to wait for someone to ask first, and any topic goes, no matter how narrow or broad
This feature makes it possible for readers to find better explanations of any topic created by other writers. And it allows writers to create an explanation in a place that readers might actually find it.
Figure 1. Screenshot of the "Derivative" topic page. View it live at: ourbigbook.com/go/topic/derivativeVideo 2. OurBigBook Web topics demo. Source. - local editing: you can store all your personal knowledge base content locally in a plaintext markup format that can be edited locally and published either:This way you can be sure that even if OurBigBook.com were to go down one day (which we have no plans to do as it is quite cheap to host!), your content will still be perfectly readable as a static site.
- to OurBigBook.com to get awesome multi-user features like topics and likes
- as HTML files to a static website, which you can host yourself for free on many external providers like GitHub Pages, and remain in full control
Figure 2. You can publish local OurBigBook lightweight markup files to either OurBigBook.com or as a static website.
Figure 3. Visual Studio Code extension installation.
Figure 5. . You can also edit articles on the Web editor without installing anything locally. Video 3. Edit locally and publish demo. Source. This shows editing OurBigBook Markup and publishing it using the Visual Studio Code extension. 
- Infinitely deep tables of contents:
All our software is open source and hosted at: github.com/ourbigbook/ourbigbook
Further documentation can be found at: docs.ourbigbook.com
Feel free to reach our to us for any help or suggestions: docs.ourbigbook.com/#contact