Explanation:
The nuclear reaction is a radioactive decay by the emission of a beta particle.
Beta emission increases the mass number of a nuclei.
A beta particle is a particle that closely resembles an electron. When a particle decays by emitting beta particles, the mass number remains the same but the atomic number increases.
Beta particle is designated as °₋₁β
²³₁₀ Ne ⇒ ²³₁₁Na + °₋₁β + energy
learn more:
Nuclear equation brainly.com/question/10094982
#learnwithBrainly
Accid rain is essentially rain but with not water but pollution from the atmosphere. Hope it helped. :)
There are 0.0214 mol Cs in 1.29×10²² atoms Cs.
Use <em>Avogadro’s number</em> to convert atoms of Cs to moles of Cs.
Moles of Cs = 1.29×10²² atoms Cs × (1 mol Cs /6.022 × 10²³ atoms Cs) = 0.0214 mol Cs
Answer: 9000 - 1 significant figure
Explanation: Since you are multiplying, the number with the least amount of significant figures determines the number of significant figures in the answer. The number 9 has 1 significant figure and 1025 and has 4 significant figures so 9 has the fewest significant figures, meaning your answer will be 1 significant figure.
