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What stage of mitosis is characterized by the disintegration of mitotic spindles and the formation of two new nuclear membranes?
Telophase is the stage of mitosis characterized by the disintegration of mitotic spindles and the formation of two new nuclear membranes around the two sets of separated chromosomes. During telophase, the chromosomes begin to decondense and the cell prepares for cytokinesis, where the cytoplasm divides to form two daughter cells.
Is is possible to convert atoms of one element into atoms of another?
According to Dalton's atomic theory chemical reactions occur when atoms are separated, joined, or rearranged. Atoms of one element, however, are never changed into atoms of another element as a result of a chemical reaction (it is possible only during nuclear reactions and radioactive disintegration).
Why are neutrons used as nuclear bullets to cause nuclear disintegration of an unstable nucleus?
Neutrons have no charge. As a result, they are not deflected by the positive charge of the nucleus or the negative charge of the electron cloud. They have the best chance of interacting with the nucleus and further destabilizing it, causing it to split.
Is neutron number conserved in radioactive decay?
Neutron number is not conserved in radioactive decay processes. During beta decay, a neutron may convert into a proton, an electron (beta particle), and an antineutrino. This results in a change in neutron number.
Prophase occurs during which stage of the cell cycle?
Prophase occurs during the first stage of the cell cycle, which is the mitotic phase. It is characterized by the condensation of chromatin into visible chromosomes, the disintegration of the nuclear envelope, and the formation of the mitotic spindle.
What is conserved during necleus disintegration?
Several things are conserved, including:* Total mass * Total energy * Total charge * Total momentum * Rotational momentum * Baryon number is conserved in all known reactions, though there are reasons to believe that this is not a strict conservation law * Color charge
Is the fallowing sentence true or false during nuclear reactions mass is not convserved but engery is conserved?
False. Both mass and energy are conserved during nuclear reactions, according to the principle of mass-energy equivalence stated by Einstein's famous equation, E=mc^2. This means that any changes in mass that occur during a nuclear reaction are accompanied by equivalent changes in energy and vice versa.
What are the two quantities are always conserved in nuclear decay equation?
Energy and electrical charge are two quantities that are always conserved in nuclear decay equation.
If a helium ion is emmited during the disintegration of a nucleus what kind of decay is this called?
Nuclear emission of a helium ion is called alpha decay.
What is nuclear chain reaction?
A nuclear chain reaction is one in which the disintegration of one nucleus creates a cascade of nucleons which, in their turn, cause the disintegration of other nuclei and thus the process can sustain itself.
Can a substance be radioactive without a nuclear reaction taking place?
Yes, it is possible; disintegration is not considered a nuclear reaction.
What quantities are conserved when balancing a nuclear reaction?
In order for a nuclear reaction to be balanced, there are quantities that must be conserved. The quantities are the atomic numbers and mass numbers of the particles involved in the reaction.
Is conversion by radioactive decay a chemical reaction?
No. It is a nuclear reaction - radioactive disintegration.
Is momentum conserved during an elastic collision?
Yes, momentum is conserved during an elastic collision.
When metamorphic rock melts and turns into lava is matter conserved?
Yes, this is a simple physical change and matter is always conserved in these. In fact, matter is always conserved except in nuclear reactions where the sum of matter and energy is conserved.
How do some nuclei change?
Atomic nuclei are changed by nuclear reactions or radioactive disintegration.
How is energy conserved when nuclear fission occurs?
When nuclear fission occurs, energy is conserved through the process of splitting an atom's nucleus, releasing a large amount of energy in the form of heat and radiation. This energy can be harnessed to generate electricity in nuclear power plants.
