- What is the longest lasting element?
- What is Oxygen’s weakness?
- Is Neon a stable element?
- Why is carbon 13 stable?
- Is lead the most stable element?
- What is the most stable nucleus in nature?
- Is oxygen a stable element?
- Which of the following elements is very stable?
- Which element has the most stable isotopes?
- Is gold a stable element?
- Who named Oxygen?
- Is carbon a stable element?
- What happens when an atom is stable?
- Why do isotopes exist?
- What is the most stable element?
- What is the least stable element?
- Is oxygen matter Yes or no?
- What elements are naturally stable?
- Why are all elements above 82 unstable?
- Which element has a half life of 8 seconds?
- Why is iron the most stable element?
What is the longest lasting element?
BismuthBismuth breaks half-life record for alpha decay.
Physicists in France have measured the longest ever radioactive half-life – over twenty billion billion years – in a naturally occurring element that decays by emitting alpha-particles..
What is Oxygen’s weakness?
Her strengths are that she is able to help people in need, but she can also take oxygen away. Her weaknesses are when she is high up in the air and there is little oxygen in the air, it makes her dizzy.
Is Neon a stable element?
Neon is the fourth most abundant element in the universe, according to the Jefferson Laboratory. … These are the most stable and least reactive elements due to having full valence shells (the outer shell has the max number of electrons, two for helium, eight for the rest).
Why is carbon 13 stable?
By far the most common isotope of carbon is carbon-12 (12C), which contains six neutrons in addition to its six protons. The next heaviest carbon isotope, carbon-13 (13C), has seven neutrons. Both 12C and 13C are called stable isotopes since they do not decay into other forms or elements over time.
Is lead the most stable element?
With its high atomic number, lead is the heaviest element whose natural isotopes are regarded as stable; lead-208 is the heaviest stable nucleus. (This distinction formerly fell to bismuth, with an atomic number of 83, until its only primordial isotope, bismuth-209, was found in 2003 to decay very slowly.)
What is the most stable nucleus in nature?
It is a stable isotope, with the highest binding energy per nucleon of any known nuclide (8.7945 MeV). It is often stated that 56Fe is the “most stable nucleus”, but only because 56Fe has the lowest mass per nucleon (not binding energy per nucleon) of all nuclides.
Is oxygen a stable element?
The Element Oxygen — Oxygen Atom. Oxygen (“Octium”) is a chemical element in the periodic table that has the symbol O and atomic number 8. The element is very common, found not only on Earth but throughout the universe. Molecular oxygen (O2) (often called free oxygen) on Earth is thermodynamically unstable.
Which of the following elements is very stable?
If you are asking about chemical stability, that would go to the Group 18 elements (the noble gases). Even the heavier ones like xenon and krypton react only under extreme conditions. Of them, helium and neon may be the least reactive.
Which element has the most stable isotopes?
TinTin has ten stable isotopes, the largest number of stable isotopes known for an element.
Is gold a stable element?
Number of isotopes (atoms of the same element with a different number of neutrons): Between 18 and 59, depending on where the line for an isotope is drawn. Many artificially created gold isotopes are stable for microseconds or milliseconds before decaying into other elements. One stable isotope.
Who named Oxygen?
Antoine-Laurent LavoisierIn 1775–80, French chemist Antoine-Laurent Lavoisier, with remarkable insight, interpreted the role of oxygen in respiration as well as combustion, discarding the phlogiston theory, which had been accepted up to that time; he noted its tendency to form acids by combining with many different substances and accordingly …
Is carbon a stable element?
Carbon is the sixth element in the periodic table. Located between boron (B) and nitrogen (N), it is a very stable element. Because it is stable, it can be found both by itself and in many naturally occurring compounds. Scientists describe the three states of carbon as diamond, amorphous, and graphite.
What happens when an atom is stable?
An atom is stable if the forces among the particles that makeup the nucleus are balanced. An atom is unstable (radioactive) if these forces are unbalanced; if the nucleus has an excess of internal energy. Instability of an atom’s nucleus may result from an excess of either neutrons or protons.
Why do isotopes exist?
The atoms of a chemical element can exist in different types. These are called isotopes. They have the same number of protons (and electrons), but different numbers of neutrons. … Because different isotopes have different numbers of neutrons, they do not all weigh the same or have the same mass.
What is the most stable element?
noble gasesThe noble gases are the chemical elements in group 18 of the periodic table. They are the most stable due to having the maximum number of valence electrons their outer shell can hold.
What is the least stable element?
Characteristics. Francium is one of the most unstable of the naturally occurring elements: its longest-lived isotope, francium-223, has a half-life of only 22 minutes.
Is oxygen matter Yes or no?
Air is an example of the type of matter known as gas. Other common forms of matter are solids and liquids. Gas is a form of matter that can change its shape and volume. … If you analyze air, it consists mostly of nitrogen and oxygen, with smaller amounts of several other gases, including argon, carbon dioxide, and neon.
What elements are naturally stable?
There are 80 elements that have at least one stable isotope. The other 38 elements exist only as radioactive isotopes….List of the Natural Elements.Element NameSymbolArsenicAsAstatineAtBariumBaBerylliumBe84 more rows•Apr 26, 2018
Why are all elements above 82 unstable?
Notice that no amount of neutrons can hold a nucleus together once it has more that 82 protons – the line stops at Z = 82! All of the elements with an atomic number greater than 82 have only unstable isotopes. … The strong nuclear force binds protons and neutrons together to make the nucleus.
Which element has a half life of 8 seconds?
Meitnerium’sMeitnerium’s most stable isotope, meitnerium-278, has a half-life of about 8 seconds. It decays into bohrium-274 through alpha decay.
Why is iron the most stable element?
This stability is caused by the attractive nuclear force between nucleons. Iron 56 is the most stable nucleus. It is most efficiently bound and has the lowest average mass per nucleon. … It takes more energy per nucleon to take one of these nuclei completely apart than it takes for any other nucleus.