The first isotope is deuterium, H-2, comprising a proton, an added neutron, and an electron.
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It has 84 protons and 126 neutrons. By Edwin Rollins
Uranium is a non metal element. Atomic number of it is 92.
istope
Example with the istope 235 of uranium: - 235 92U (recommended) or - U-235
Radioisotopes are radioactive (unstable) and breakdown over time. The nucleus is "uncomfortable" with the additional neutrons, so over time, they are broken off or released, which inturn releases short wave energies. Normal isotopes do not behave in their manner.
- the same chemistry, the same number of electrons and protons - except for different numbers of neutrons in the nucleus. Examples are 12C and 14C (6 and 8 neutrons) and 235U and 238U (146 and 143 neutrons).
Carlsbad Caverns began forming approximately 250 million years ago, with the majority of the cave's development occurring during the last 5-10 million years. The caves were formed by sulfuric acid dissolving the surrounding limestone bedrock to create the magnificent caverns we see today.
A typical chromium atoms has 28 neutrons. Because electrons are so small, virtually all of the atomic mass comes from the protons and neutrons. By subtracting the number of protons (equal to the atomic number) from the total atomic mass, the number of neutrons is obtained. For chromium atomic mass- 52 atomic number (number of protons) - 24 number of neutrons 52-24=28
Rubidium is the twenty-third most abundant element in the Earth's crust. It occurs in the minerals pollucite, carnallite, leucite and lepidolite, from which it is recovered commercially. Potassium minerals and brines also contain this element and are a further commercial source.
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The first syllable is accented.