Chemistry, 29.02.2020 06:13 goku4420

Which of the following represents gamma emission?

3015P Imported Asset 3014Si + _

23892U Imported Asset 23490Th + _

147N + 42He Imported Asset 178O + ___

13153I Imported Asset 13153I + _

Answers: 2

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Answers

Answer from: jeremiahhart13

$^{238}_{92}U\rightarrow ^{234}_{90}Th+^4_2{He}+^0_0\gamma$

Explanation:

The equations are:

$^{30}_{15}P\rightarrow^{30}_{14}Si+$ ____

$^{238}_{92}U\rightarrow ^{234}_{90}Th+$ ____

$^{14}_{7}N+ ^{4}_{2}He+\rightarrow ^{17}_{8}O+$ ____

$^{131}_{53}I\rightarrow ^{131}_{53}I+$ ____

You need to add a particle to balance either the mass number (the superscript to the left of the chemical symbol) or the atomic number (the subscript to the left of the chemical symbol).

These are the particles for each of the equations:

1. $^{30}_{15}P\rightarrow^{30}_{14}Si+^0_{1}\beta$

This is a typical radioactive decay: the emission of a positron, whith the decrase of the atomic number.

2. $^{238}_{92}U\rightarrow ^{234}_{90}Th+^4_2{He}+^0_0\gamma$

This is alpha uranium decay and it implies the emission of the alfa particles and gamma emmission. It is a highly energetic nuclear reaction.

^4_2He is the alpha particle

$^0_0\gamma$ represent gamma emission.

Gamma emission is just electromagnetic radiation of high energy. They do not change either the mass number or the atomic number.

3. $^{14}_{7}N+ ^{4}_{2}He+\rightarrow ^{17}_{8}O+^1_1H$

This is the emission of a proton, with low energy release.

4. $^{131}_{53}I\rightarrow ^{131}_{53}I$

There is not any change.

Answer from: Quest

In meteorology, a cloud is an aerosol consisting of a visible mass of minute liquid droplets, frozen crystals, or other particles suspended in the atmosphere of a planetary body. nephology is the science of clouds, which is undertaken in the cloud physics branch of meteorology.cirrus clouds usually describe clouds high in the atmosphere that can include wispy clouds, typically with ice crystals. variations include cirrus, cirrocumulus and cirrostratus as defined by the cloud's position in the atmosphere.layered stratus clouds have both flat tops and bases, and can appear as if they take up the whole sky, stretching from horizon to horizon. other combinations and variations include stratus, stratocumulus, nimbostratus and altostratus.cumulus clouds often pile up in multiple layers of the atmosphere, representing clouds that develop vertically. cumulus clouds often look like pillars with anvil-type tops or columns of clouds stacked vertically. variations include cumulus, cumulus-congestus, cumulonimbus and altocumulus.

Answer from: Quest

i'm pretty sure its b i might be wrong though!

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Which of the following represents gamma emission?

3015P Imported Asset 3014Si + ___

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