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Q: What does the number 84 in the krypton -84 represent?

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84 is the mass number of a stable isotope of krypton, 84Kr has 36 protons and 48 neutrons in its nucleus that give it an atomic weight of 84.

84 is the mass number: 36 proton plus 48 neutrons

84 is the mass number: 36 proton plus 48 neutrons

It represents the mass number.

Krypton 84 is mass number

The 84 is the number of protons and neutrons (nucleons) in the atomic nucleus of the isotope krypton-84. . As Kr has an atomic number of 36, the number of protons is 36, and in krypton -84 there are therefore 48 neutrons.

krypton's atomic number is rounded to 84

84 stands for the mass number (number of protons + number of neutrons)

84

The chemical formula for krypton is 'Kr' atomic number is 36 and mass number is 84.

The 84 in Krypton, which is actually closer to 83.8), is the ATOMIC MASS. This is a number that allows one to track the number of atoms of krypton in a given amount of krypton or a substance containing it. The 83.8 means that in 83.8 GRAMS of pure Krypton, there is exactly one MOLE of Krypton. One mole is defined as being EXACTLY 2.2214179X10^23 atoms (Avogadro's number) of Krypton. That means, if we have something like 20 grams of Krypton, we can 'count' the molecules in this chunk of Krypton like this: (20grams Kr)(1Mol Kr / 83.8 grams) = 0.2386634845 moles of Krypton. From here, we multiply the number of moles by Avogadro's number, and we get: (0.2386634845 moles Kr)(2.2214179X10^23 atoms / mol) = 5.301713365X10^22 atoms of Kr in 20 grams of Kr.

Krypton is a non metal element. Mass number of it is 84.

No, krypton is normally not radioactive. Almost 60% of krypton is composed of krypton-84.

Krypton is a metal element. Atomic mass of it is 84.

The Atomic Mass of krypton is 83.80(1) if you round 84

a magical number <(")

Krypton is a non meta element. Atomic mass of it is 84.

Krypton is a non meta element. Atomic mass of it is 84.

36Kr84

Natural isotopes of krypton are: Kr-78, Kr-80 to Kr-84, Kr-86.

The Oxidation number for Kr which is krypton is 2. The Oxidation number for Kr which is krypton is 2. The Oxidation number for Kr which is krypton is 2.

There are 46 protons 34 neutrons and 12 electronsThere are 36 protons and 48 neutrons in the most abundant isotope of krypton, krypton-84. To find the number of protons, just find the atomic number. This is the same as the number of protons. To find the number of neutrons, take the mass number and subtract the atomic number. For example, carbon-12 has an atomic number of 6 and a mass number of 12. Carbon-12 has 6 protons and 6 neutrons. There are isotopes that have different numbers of neutrons.

Yes. Krypton has an atomic number of 36.

Krypton subtract it and you get 36 so then, you look for the atomic mass 36 in the periodic table and it says Krypton.

Krypton has 36 protons and electrons; the number of neutrons is specific for each isotope: Number of neutrons in a krypton isotope = Mass number - 36