They are DIFFUSION and OSMOSIS.
According to chemicool, the isotope argon-40, which results from the radioactive disintegration of potassium-40, makes up the great percentage of argon on Earth.
In the current periodic table, argon is estimated to have an average atomic mass of about 39.5 amu, which is extremely near to argon-40.
Radioisotopes are created using argon isotopes primary precursors. The radioactive K-38 that can be employed as a blood supply tracer was made from the argon isotopes Ar-40 as well as Ar-38. The radioactive Ar-41 that is created from Ar-40 is utilized to track gas flows.
Therefore, only two isotopes of argon, Ar-40 and Ar-38 exist in nature. if this were true, the atomic weight of argon 2 amu range.
To know more about isotope argon-40
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<span>The answer is letter B. Melting is an endothermic change, because ice absorbs energy from its surroundings as it melts. The melting process absorbs heat energy that causes the ice to melt. Endothermic change is when it absorbs energy from its surrounding. The other choices are incorrect because exothermic change releases energy to its surrounding.</span>
Answer:
Covalent bonds
Explanation:
A water molecule consists of two atoms of hydrogen linked by covalent bonds to the same atom of oxygen. Atoms of oxygen are electronegative and attract the shared electrons in their covalent bonds.