This seems to refer to radioactive decay. The answer would depend on the isotope of cobalt used! For example, cobalt-59 is stable, so in this case, all of the original cobalt would remain.For more information, check the Wikipedia article entitled "Isotopes of cobalt".
Cobalt is a mineral, not a rock.
Cobalt has perfect cleavage in all directions.
Cobalt itself is not a mineral. Cobalt mixed with arsenic and sulfur make the mineral Cobaltite. It also has iron and nickel mixed in.
Over 100 years, a 3 kg rock on a hill will likely remain in place unless affected by external forces. Weathering processes, such as rain, wind, and temperature changes, may gradually erode its surface and the surrounding soil. Additionally, vegetation growth could potentially stabilize or shift the rock. However, without significant geological events, the rock is expected to remain relatively unchanged in its position.
Do nothing. It is not necessary to do anything if you want a rock to remain the same.
Assuming that cobaltic oxide is the only cobalt-containing constituent of the rock, the mass of cobaltic oxide in the rock is 56.7(0.567) or 32.149 mg. The formula of cobaltic oxide is Co2O3 and its gram formula mass is 165.86. The formula shows that each formula unit contains 2 atoms of cobalt. The amount of 32.149 mg corresponds to (32.149 X 10-3)/165.86 or 1.938 X 10-4 formul units of cobaltic oxide. The number of atoms in this mass is therefore Avogadro's Number X 2 X 1.9438 X 10-4 or 2.34 X 1020 atoms of cobalt, to the justified number of significant digits.
The bubbles remain inside the rock once the rock has solidified.
The rock is approximately 3.2 million years old. This can be calculated by dividing the half-life of the radioisotope (400,000 years) by the time it takes for 6.25 percent of it to remain (0.0625), which gives us 6 half-lives. Multiplying 400,000 by 6 gives us 2.4 million years, and since we need to account for the original amount as well, the total age of the rock is 3.2 million years.
The exp they give you never changes the higher you level up, it will always remain the same.
the answer is petrified fossils
Balanced rocks typically remain stable due to a combination of their shape, weight distribution, and friction between the rock and its pedestal. This equilibrium can be maintained as long as these factors remain in balance, preventing the rock from tipping over.
The oldest rock in Scotland is 3½ million years old, so not that much.