0
How many years would it take half of the rubidium-87 atoms in piece of rock to change into strontium-87?
The half-life of rubidium-87 is approximately 48.8 billion years. This means it would take about 48.8 billion years for half of the rubidium-87 atoms in a rock sample to decay into strontium-87. Therefore, to see half of the rubidium-87 atoms change into strontium-87, you would need to wait this extensive period.
What else can I help you with?
Does the area of a piece of paper change if you change the height and radius?
Yes.
Is molding a piece of silver a physical change?
Molding a piece of silver using heat is a physical change. This is because it is changing shape and not chemically changing the silver.
When you use a hammer to drive a nail into a piece of wood are you changing the size or the direction of the force?
change the direction of force,because it exerted the force on it.
A brick of pure silver is divided into 4 pieces of equal size. Compared to the original brick the density of each piece is .?
The density of each piece remains the same as that of the original brick of pure silver. This is because density is defined as mass per unit volume, and since the mass and volume of each piece are both reduced proportionally, the density does not change. Thus, each piece maintains the same density as the original brick.
What is a piece of caca?
Its a piece of crap, feces, or poop in yitish. And it smells out of this world!A.K.A. piece of feces.
Why is magnitizing a piece of steel a physical change?
Cause you're changing the direction of the atoms when you magnetize it.
Are the atoms in a piece of iron different from the atoms in a piece of tin?
Yes. Their atomic mass is different, among other things.
How many dozens of silver atoms are in a piece of jewelry?
The number of silver atoms in a piece of jewelry would depend on the size and weight of the jewelry. A typical piece of silver jewelry may contain millions to billions of silver atoms.
What is the smallest piece of matter discovered?
Atoms
What happens during physical changes?
The transformation of a liquid to a gas.
Is folding a piece of paper a chemical change?
no it is not a physical change because folding a piece of paper does not chemicaly change it.
tearing a piece of paper in half physical or chemical change?
Physical change
How the arrangement of the atoms and molecules in a sugar crystal differ from those in a piece of plastic?
the atoms dissolve with the atoms and the molecules to lock the sugar and salt / lock in to make the crystals
Difference between a physical change and a chemical change?
A chemical change is the change of one or more substances into other substances. A physical change is when the state or shape of matter is changed. In a chemical change molecules are combined or beak apart to form new substances.Rusting iron is an example of a chemical change. crushing a can or tearing paper can be an example of physical change.
Is burning a piece of paper chemical change or physical change?
Cheimical change
When a piece of paper burns is physical change or chemical change?
Cheimical change
When a piece of metal cools it will do what?
When a piece of metal cools, it will contract or shrink in size. This happens because the atoms in the metal lose kinetic energy and move closer together, leading to a decrease in volume. Cooling can also change the metal's properties, such as making it harder or more brittle.
