Question: What Is A Stable Element?

Who named Oxygen?

Periodic Table appDiscovery date1774Discovered byJoseph Priestley in Wiltshire, England and independently by Carl Wilhelm Scheele in Uppsala, SwedenOrigin of the nameThe name comes from the Greek ‘oxy genes’, meaning acid forming.AllotropesO2, O3.

What is the least stable element?

Elements with atomic number less than 83 have at least one stable isotopes except technetium (Tc, Z = 41) and promethium (Pm, Z = 61). Elements with atomic number between 84 and 92 (inclusive) are present, but some only as decay products of uranium or thorium. This aspect is discussed in decay families.

Which is the most stable solution?

Suspension is more stable. This is because suspension does not mix with each other. The denser particles settle down at the bottom and makes the solution stable.

What does a stable element mean?

A stable atom is an atom that has enough binding energy to hold the nucleus together permanently. An unstable atom does not have enough binding energy to hold the nucleus together permanently and is called a radioactive atom.

How do you know if an element is stable?

Nuclear Stability is a concept that helps to identify the stability of an isotope. The two main factors that determine nuclear stability are the neutron/proton ratio and the total number of nucleons in the nucleus.

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 nuclide is most stable?

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 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 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 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

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.

What is the longest lasting element?

Bismuth-209 (209Bi) is the isotope of bismuth with the longest known half-life of any radioisotope that undergoes α-decay (alpha decay).