Ba-138.
The isotope symbol for Barium-137 is Ba-137.
Barium has 56 electrons and protons; the number of neutrons is specific for each isotope. Number of neutrons in a barium isotope = Mass number - 56
Barium has seven isotopes, with atomic masses ranging from 130 to 138. The most abundant isotope of barium is Barium-138, making up about 71% of naturally occurring barium. Barium-137 is a radioactive isotope with a half-life of about 2.5 minutes.
Barium has 81 neutrons :D
The symbol is Ba. The number of neutrons equal the number of protons.
The isotope symbol for Barium-137 is Ba-137.
Barium has 56 electrons and protons; the number of neutrons is specific for each isotope. Number of neutrons in a barium isotope = Mass number - 56
Barium has 81 neutrons :D
Barium has seven isotopes, with atomic masses ranging from 130 to 138. The most abundant isotope of barium is Barium-138, making up about 71% of naturally occurring barium. Barium-137 is a radioactive isotope with a half-life of about 2.5 minutes.
The symbol is Ba. The number of neutrons equal the number of protons.
Barium-140 has 82 neutrons. This is calculated by subtracting the atomic number (56) from the mass number (140).
Each isotope of an element has a different number of neutrons.Number of neutrons = Atomic mass of the isotope - Atomic number of the elementThe atomic number of barium is 56.For a list of barium isotopes see the link below.The answer it wants is 81.
I am not precisely sure of what this question means. Nevertheless, we can talk of Ba-138 as an isotope, and hope this covers the subject. Ba-138 is a stable isotope of barium. It has 56 protons and 82 neutrons. There is another isotope of barium which also has 56 protons and 82 neutrons called Ba-138m. It has a half life of less than a millionth of a second, and decays into Ba-138.
The mass number is the sum of protons and electrons in the atomic nucleus of an isotope. Barium has many isotopes and each has another mass number.
It depends on which isotope you are talking about. Bariuim-133, for instance, has 133 AMU. (Atomic Mass Units) Known isotopes of barium range from -112 to -153.
The isotope 139Ba has a mass of 138,908 841 3(5).
No, Barium has both stable and radioactive isotopes. Out of its 25 known isotopes, only 6 of them are considered radioactive. The most stable isotope of Barium is Barium-138, which is not radioactive.