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e-lub [12.9K]
4 years ago
10

In any pure sample of CO2, the ratio of the mass of carbon to the mass of

Chemistry
1 answer:
Vlad [161]4 years ago
7 0

Answer:A

Explanation:por q si bb

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Polonium is a rare element with 33 radioisotopes. The most common one, 210Po, has 84 protons and 126 neutrons. When 210Po decays
Fofino [41]

Answer:

Lead Pb

Explanation:

Firstly, we need to know what occurs when a radioisotope emits an alpha particle. An alpha particle is an helium atom. When an isotope emits an alpha particle, it loses an helium atom corresponding to subtracting 4 from its mass number and 2 from its atomic number. This of course coupled with the release of radiation.

Now, we polonium has a proton number of 84 and a mass number of 210. Subtracting 2 and 4 respectively from its proton and mass numbers will yield 82 and 206 proton and mass numbers respectively.

Hence, the decomposition of the Po-210 isotope will yield an element with 82 proton number and 206 mass number. This corresponds to the element Lead.

210Po ——> 206Pb + alpha particle + radiation

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An atom is found in group 17 and contains 10 neutrons. How many valence
Naddika [18.5K]
Just 7 electrons this is the answer
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Julli [10]

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 maybe they don't want to answer it  only if you give them a lot of points and brainliest they will answer it i think

Explanation:

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THE RIGHT ANSWER WILL RECIEVE A BRAINLEST AND POINTS!!!
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