0
For a rock to have started with 1500 atoms of any element and now have 750 it has undergone radioactive decay equal to one full half life (i.e. there are half the number of atoms now than at the beginning).
Uranium-235 has a half life of 7.038×108 years.
As such, the rock is 7.038×108 or 703 million years old.
What else can I help you with?
Is molten rock more dense than solid rock?
Molten rock is generally less dense than solid rock because the atoms in a molten state are more spread out and have more freedom to move. When molten rock cools and solidifies, the atoms pack together more tightly, increasing the density of the rock.
If a small rock is two grams how many small rocks would it take to equal the mass of the larger rock that weighed 3 kilograms?
To find out how many small rocks are needed to equal the mass of the larger rock, we first convert the mass of the larger rock from kilograms to grams: 3 kilograms = 3000 grams. Since each small rock weighs 2 grams, to find the number of small rocks needed, we divide the mass of the larger rock by the weight of each small rock: 3000 grams / 2 grams per small rock = 1500 small rocks. Therefore, it would take 1500 small rocks to equal the mass of the larger rock weighing 3 kilograms.
Are rock crystals the same as quartz?
Yes! Of course! Because they are both crystals.
If a diamond is a rock to which group of rocks does it belong?
A diamond is a type of mineral composed of carbon atoms arranged in a crystal lattice structure. It is not classified as a rock itself, but rather as a mineral found within certain types of rocks, such as kimberlite or lamproite.
Is anamorphic a rock?
No, anamorphic is not a type of rock. Anamorphic refers to a technique used in art and photography to create a distorted image that appears normal when viewed from a particular angle or with a specific device.
Where was grunge rock performed?
Grunge rock was originally performed in Seattle Washington.
Where is Marble a metaphoric rock originally from?
Limestone
Why is a sedimentary rock called a sedimentary rock?
Because it was originally a sediment, such as sand or mud, but was then lithified into a rock.
Who originally wrote Let It Rock?
L.A. Guns
How was the rock in the grand canyon originally made?
Erosion
What rock is made up of carbon atoms?
Diamond is a rock made up of carbon atoms. Its structure is a repeating pattern of carbon atoms bonded together in a strong, three-dimensional network.
How is it possible for you to tell if atoms in one rock are vibrating faster than the atoms in another rock?
Simply put, accurately take their temperatures. The warmer, the faster.
Are atoms and molecules that make up a rock never moving?
Atoms and molecules that make up a rock are constantly moving, though at a very small scale. They vibrate in place due to thermal energy, even in solid objects like rocks. This movement is known as thermal motion and is responsible for the overall stability and properties of the rock.
What are the types of atoms in a pumice rock?
Pumice rock is primarily composed of silica (silicon dioxide) with traces of other elements such as aluminum, potassium, sodium, and iron. These atoms combine to form the unique porous and lightweight structure of pumice.
What type of rock originally covered the earth's surface?
Granite
What type of metamorphic rock is very hard and is originally from sandstone?
Quartzite, a non banded metamorphic rock.
Why can the chemical composition of rock be changed during metamorphism?
It is an open system; atoms can move into and out of the rock.
