when does a star become unstable brainly

In the core of a star, gravity produces high density and high temperature. We're excited to hear you’re interested in becoming a Moderator on Brainly! To better understand unstable atoms, it helps to appreciate what constitutes stability. 2 See answers sonusharma45 is waiting for your help. Star systems are not to be confused with planetary systems, which include planets and similar bodies (such as … UNSTABLE 'UNSTABLE' is a 8 letter word starting with U and ending with E Crossword clues for 'UNSTABLE' Clue Answer; Not firmly fixed (8) UNSTABLE: Synonyms, crossword answers and other related words for UNSTABLE We hope that the following list of synonyms for the word unstable will help you to finish your crossword today. 4 Answers. Bismuth with a proton number (z) of 83 is the stable nuclei with the highest number of protons. Favorite Answer. Stars with about eight to 20 solar masses become neutron stars when they die. Moreover, stars are responsible for the manufacture and distribution of heavy elements such … Biology; 5 points; Please explain to me the basic difference between … Explanation:A black hole can be formed by the death of a massive star. Nuclear reactions at the center (or core) of stars provides enough energy to make them shine brightly for many years. Since 1996, a science team has been monitoring the X-ray flux from this region using RXTE. The radioactive elements emit; alpha particles (a) – 2 protons and 2 neutrons (helium nucleus) beta particles (b) – a high speed electron; gamma rays (g) – a photon . There are many reasons why a star might increase in brightness in a sudden and explosive-like manner; the collision of two stars, core changes, unstable pulsations. All stars, irrespective of their size, follow the same 7 stage cycle, they start as a gas … Add your answer and earn points. As the red giant’s core continues to collapse under the force of gravity, it will become dense enough to convert its remaining supply of helium into carbon. The title supergiant, as applied to a star, does not have a single concrete definition. It is red because it is cooler than it was in the main sequence star … Please, do not share them with anybody! Stars are the most widely recognized astronomical objects, and represent the most fundamental building blocks of galaxies. In case of … When such a star has exhausted the internal thermonuclear fuels in its core at the end of… sonusharma45 sonusharma45 1 hour ago Science Secondary School How does blackhole formed ?? Relevance. A star is a sphere of gas held together by its own gravity. The Brainly community is constantly buzzing with the excitement of endless collaboration, proving that learning is more fun — and more effective — when we put our heads together. The density of gas in the core of our sun is 160 g/cm 3, much higher than the densest metal, and the temperature is 15,000,000 K (27 million degrees Fahrenheit). As RXTE continues to provide the first detailed monitoring of the X-ray emissions of Eta Car, coordinated observations are helping answer many scientists' questions. 4 years ago. All the applicants will be contacted, so please be patient. Stars. As a member, you'll also get unlimited access to over 83,000 lessons in math, English, science, history, and more. I just noticed I'm asking a ton of questions, so forgive me if I annoy anyone with my lack … Tell me more about the Sun. Answering questions also helps you learn! At this temperature, the hydrogen and helium gases become a plasma. This means that whatever causes the brightness changes must be cyclic (i.e. The first step to becoming a Moderator is to become a Trusted Helper If you're active on Brainly and provide quality answers to help other users then you may be eligible.. The life history of stars The life cycle of a star Stars are formed in clouds of gas and dust, known as nebulae. A star system or stellar system is a small number of stars that orbit each other, bound by gravitational attraction. Most naturally occurring atoms are stable and do not decay. Some yellow hypergiant stars may be within a short phase as they evolve from red to blue. Eta Carinae is an extremely massive star in our galaxy, and an extremely unstable one. Alpha … This gives information of the … I assume Uranium isn't the element that can be made unstable, if so, what determine if an element can be made unstable, and if it could be made unstable, would it be fissile? Following this, stars develop in … A large group of stars bound by gravitation is generally called a star cluster or galaxy, although, broadly speaking, they are also star systems. This radiation starts up being trapped inside the star, and it can take more than 100,000 years to work its way out. Evolutionary effects on these stars are not negligible, even for a middle-aged star … Star Type Color Approximate Surface Temperature Average Mass (The Sun = 1) Average Radius (The Sun = 1) Average … And how does it feel like to be in that state ? Definition. Also why are fission stars so rare compared to fusion stars? Shoneitszeliapink . Smaller stars (like our Sun) eventually become faint white dwarfs (hot, white, dim stars) that are below the main sequence. Anonymous. For most of its lifetime, a star is a main sequence star. All stars begin life in the same way. This occurs over an approximately 100 million year … Surely the best way to image quark (dwarf) stars as free “quark soup” – where quarks become free as electrons do in the Fermi Sea within stars. Shoneitszeliapink. The outer shell of the star, which is still mostly hydrogen, starts to expand. Stable atoms retain their form indefinitely, while unstable atoms undergo radioactive decay. Why does a star become unstable after the formation of iron by fusion? The exact lifetime of a star depends very much on Plus, get practice tests, quizzes, and … The closest star to Earth is our very own Sun, so we have an example nearby that astronomers can study in detail. If you believe you qualify to become a Trusted Helper, you can apply today! We've arranged the synonyms in length … Answering questions also helps you learn! So, why do stars die? A cloud of dust and gas, also known as a nebula, becomes a protostar, which goes on to become a main sequence star. Spectral Classes. When the new star reaches a certain size, a process called nuclear fusion ignites, generating the star's vast energy. A typical star begins as a thin cloud of hydrogen gas that, under the force of gravity, collects into a huge, dense sphere. However, novae are often recurrent, meaning that after 50 to 100 years the nova will go off again. When a nucleus decays does it become more unstable or stable? Ask for details ; Follow Report by Kavyadixit8063 31.03.2018 Log in to add a comment Others may actually be very hot stars, but with a "pseudo-photosphere", which is a lot cooler, thus manifesting as yellow. … The term giant star was first coined by Hertzsprung when it became apparent that the majority of stars fell into two distinct regions of the Hertzsprung–Russell diagram.One region contained larger and more luminous stars of spectral types A to M and received the name giant. As such a frequently executed manoeuvre, it’s vital that you do what you can to ensure any risk is sufficiently reduced — but how do you do it? it doesn't destroy the star). When this occurs, the star will expand to become a red giant. What's the solution to cure that person? - 22458225 When the hydrogen supply in the core begins to run out, and the star is no longer generating heat by nuclear fusion, the core becomes unstable and contracts. The lessons we learn about the Sun can be applied to other stars. The planets Mercury and Venus will be devoured in the flames of the giant star… Orbiting the nucleus is a cloud of lighter, negatively charged electrons. Because they do … Help the community by sharing what you know. Here, Forklift training provider Mentor, provides some tips to help you avoid some of the most common hazards, ensure safe practice and prevent costly accidents: 1. In the familiar planetary model, an atom consists of a nucleus of heavy positively charged particles, called protons, and electrically neutral ones called neutrons. Protons and electrons have equal … Help the community by sharing what you know. We use cookies to improve your experience on this website. How do stars form and evolve? The nucleus of … If the forces between the protons and the neutrons in the nucleus are unbalanced, then the atom is unstable. All nuclei with proton numbers above 83 are unstable, they are RADIOACTIVE. The age, distribution, and composition of the stars in a galaxy trace the history, dynamics, and evolution of that galaxy. outputs more heat than is needed to initialize the reaction), until the mass of the atom reaches 56 atomic … Ask for details ; Follow Report by EdmotoSantiago5584 15.08.2017 Log in to add a comment Stars come in a variety of masses and the mass determines how radiantly the star will shine and how it dies. Massive stars transform into supernovae, neutron stars and black holes while average stars like the sun, end life as a white dwarf surrounded by a disappearing planetary nebula. BECOME A BRAINLY HERO! It will become 166 times larger than the sun we knew. Red giants are bright red in color. In unstable nuclei the strong nuclear forces do not generate enough binding energy to hold the nucleus together permanently. They are also larger and much more luminous than main sequence stars. The stars run out of fuel as they age and their central cores collapse … : No member of our Team will ever ask you for your passwords or other credentials for Brainly, Facebook, Twitter, e-mail, etc. Answer Save. HST Image Credit: Jon Morse … When the star … An atom is stable because of a balanced nucleus that does not contain excess energy. It is unstable nuclei that are radioactive and are referred to as radioactive nuclei and in the case of their isotopes called radioisotopes. This is almost as large as the orbit of the earth today. The Brainly community is constantly buzzing with the excitement of endless collaboration, proving that learning is more fun — and more effective — when we put our heads together. All stages of fusion are exothermic (i.e. Adam says: July 1, 2008 at 3:38 A… By what I have read, would an atom become unstable when it reaches a specific isotopic ratio? Ask for details ; Follow Report by Vishwanathview7928 31.03.2019 Log in to add a comment Biology; 5 points; Please explain to me the basic difference between … Why people become mentally unstable ? Limit risk of slips and falls when mounting/dismounting truck. It is stable, with balanced forces keeping it the same size all the time. Stable & Unstable Nuclei. The star has now reached the red giant phase. How does a protostar become a star? That is, the electrons separate from the nuclei to give a mix of positively … All applications will be reviewed within 48 hours by the Administrator or designated moderators. ATTENTION! Star - Star - Star formation and evolution: Throughout the Milky Way Galaxy (and even near the Sun itself), astronomers have discovered stars that are well evolved or even approaching extinction, or both, as well as occasional stars that must be very young or still in the process of formation. Stars that evolve into this area also become very unstable, shedding vast quantities of their masses. Gravity constantly works to try and cause the star … A star's life is a constant struggle against the force of gravity. These hot, shrinking stars have depleted their nuclear fuels and will eventually become cold, dark, black dwarfs. As it expands, it cools and glows red. By continuing to browse our site you agree to our use of cookies. The unstable nuclei lie above and below the line of stability in the neutron – proton plot. How does a star become a black dwarf? The fusion process forces hydrogen atoms together, transforming them into heavier elements such as helium, carbon and oxygen.

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