Answer:
-2
Explanation:
Consider object is starting 12 units right from the reference point which is 0.
Assign the right direction positive sign.
when object is moving 14 units on left direction the position of object will be two units to the left side of reference point.
Assign the left direction negative sign position will be -2.
The equations that are nuclear reactions are as follows:
- superscript 185 subscript 79 upper Au right arrow superscript 181 subscript 77
- superscript 210 subscript 84 upper Po right arrow superscript 206 subscript 82 upper Pb plus superscript 4 subscript 2 upper He.
<h3>What is nuclear reaction?</h3>
A nuclear reaction is a reaction that involves the fission of an atomic nucleus, or the fusion of one or more atomic nuclei and/or subatomic particles in which the number of protons and/or neutrons in a nucleus changes.
The products of a nuclear reaction may contain a different element or a different isotope of the same element.
Therefore, the equations that are nuclear reactions are as follows:
- superscript 185 subscript 79 upper Au right arrow superscript 181 subscript 77
- superscript 210 subscript 84 upper Po right arrow superscript 206 subscript 82 upper Pb plus superscript 4 subscript 2 upper He.
Learn more about nuclear reaction at: brainly.com/question/19752321
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Answer:
Uranium
Explanation:
The only natural element currently used for nuclear fission in reactors is uranium. Natural uranium is a highly energetic substance: one kilogram of it can generate as much energy as 10 tonnes of oil. Naturally occurring uranium comprises, almost entirely, two isotopes: U238 (99.283%) and U235 (0.711%).