Chemistry, 31.01.2020 01:59 RKT28

When a radioactive isotope undergoes beta decay, which of the following will not occur? question 16 options: energy is released. the atomic number of the original nucleus changes. the mass number of the original nucleus changes. the original nucleus approaches greater stability.

Answers: 1

Show answers

Answers

Answer from: ale414141

This will not occur: The mass number of the original nucleus changes.

Explanation:

A radioactive isotope is an unstable isotope of an atom, which, ir order to attain stability, emits radtiation.

When an unstable isotope emits radition it is said that it has undergone decay.

There are three kinds of decay: Alpha, Beta and Gamma.

This question deals only with Beta decay.

The Beta decay consists in the emission of an electron (mass number zero, charge -1) as result of the transformation of neutron into a proton (mass number 1 and charge 0) and the so mentioned electron.

Since, the mass number is the sum of the number of protons and neutrons, the mass number of the original nucleus and the new nucleus are the same.

On the other hand, the atomic number (the number of protons) increase.

In summary:

The mass number remains constantThe atomic number incrreasesThe charge of the nucleus increases.

With that, you can review the four options of your question:

Energy is released: Beta decay is a nuclear reaction, so it is accompanied by the release of energy. Hence, this is true.The atomic number of the original nucleus changes: True. This was stated in our analysis: as consequence of the creation of a proton, the atomic number increases.The mass number of the original nucleus changes. False. Since mass number is the sum of the numbrer of protons and neutrons, and one neutron originated a proton, the mass number does not change. Hence, this is the right answer choice.The original nucleus approaches greater stability. True. As stated, the decay of the nucleus originates a new more stable nucleus.

Answer from: Quest

Well technically there are two correct answers b and d. but for you its probably b in general.good day sir/ma'am : ) (i know not gender)

Answer from: Quest

The closer the atoms are to becoming ionic the more highly dense the negatively charged side gets.

Another question on Chemistry

Chemistry, 22.06.2019 00:30

Butadiene undergoes a reaction at a certain temperature in the gas phase as follows: 2c4h6(g) --> c8h12(g) the following data were collected for this reaction: time (min) [c4h6] (m) 0 0.36 15 0.30 30 0.25 48 0.19 75 0. determine the order of the reaction and the rate constant. 1st order and k = 4.3x10 -4 s-1 1st order and k = 2.3x10-4 s-1 2nd order and k = 4.3x10-4 s-1 2nd order and k = 2.3x10-4 s-1 zero and k = 4.3x10-4 s-1

Answers: 3

Answer

Chemistry, 22.06.2019 20:20

Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming natural gas. in the first step, nitrogen and hydrogen react to form ammonia: (g) (g) (g) in the second step, ammonia and oxygen react to form nitric acid and water: (g) (g) (g) (g) calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .

Answers: 3

Answer

Chemistry, 22.06.2019 23:30

To find the work done, the force exerted and distance moved are multiplied. a couch is moved twice before you are happy with its placement. the same force was used to move the couch both times. if more work is done the first time it is moved, what do you know about the distance it was moved? a) when more work was done, the couch was moved the same distance. b) when more work was done, the couch was moved less. c) when more work was done, the couch was moved further. d) when more work was done, the couch wasn't moved at all.

Answers: 1

Answer

Chemistry, 23.06.2019 01:30

Magnesium is the limiting reactant in this experiment. calculate the theoretical yield of mgo for each trial. trial 1: trial 2: data mass of empty crucible with lid trial 1: 26.688 trial 2: 26.681 mass of mg metal, crucible, and lid trial 1: 26.994 trial: 2 26.985 mass of mgo, crucible, and lid trial 1: 27.188 trial 2: 27.180

Answers: 1

Answer

You know the right answer?

When a radioactive isotope undergoes beta decay, which of the following will not occur? question 16...

Questions

Engineering, 19.08.2021 14:20

F pulls a box having mass over a 8 from point A to B. Find the work done by the 28W F...

Chemistry, 19.08.2021 14:20

Formula for finding speed using binding energy and mass...