All categories

3 years ago

Complete each nuclear fusion reaction.

Chemistry

2 answers:

Yuri [45]3 years ago

5 0

<u>Answer:</u> D represents 222, E represents 86, F represents 234 and G represents 90.

<u>Explanation:</u>

The two given chemical reactions are a type of alpha decay processes. Alpha decay process is defined as the process, in which a heavier nuclei decays into lighter nuclei emitting alpha particle. The alpha particle released has a charge of +2 units. and is also known as a helium nucleus.

$_Z^A\textrm{X}\rightarrow _{Z-2}^{A-4}\textrm{Y}+_2^4\textrm{He}$

The isotope formed has atomic mass reduced by 4 units and atomic number reduced by 2 units.

So, for the chemical equations:

1. $_{226}^{86}\textrm{Ra}\rightarrow _{222}^{84}\textrm{Rn}+_2^4\textrm{He}$

D represents 222, E represents 86.

2. $_{238}^{92}\textrm{U}\rightarrow _{234}^{90}\textrm{Rn}+_2^4\textrm{He}$

F represents 234 and G represents 90.

KatRina [158]3 years ago

5 0

Answer:

D 222, E 86, F 234 and G 90.

Explanation:

You might be interested in

What would be the most likely charge of an ion formed from an atom with the electron configuration: 1s22s22p63s2 (2 points) +1 -

Lady bird [3.3K]

+2 D. because this atom is magnesium and mag. has a charge of +2

3 0

3 years ago

Read 2 more answers

Identify the name of the smallest particle of an element that still retains all the chemical properties of that element?

Nezavi [6.7K]

The smallest particle of an element that still retains the chemical properties of it is an atom.

4 0

3 years ago

Give me a summary on Jupiter 3-5 paragraphs

zhannawk [14.2K]

<h2><em>Summary: Jupiter is the largest and widest planet in the solar system. Jupiter's moon name is Europa. Jupiter only has one 79 moons that we know of. Jupiter is the 5th planet from the sun.Jupiter’s mass is 318 times larger than Earth.A year on Jupiter is equal to 11.9 Earth Years.</em></h2>

6 0

2 years ago

600 s after initiation of a first order reaction 48.5% of the initial reactant concentration remains present. What is the rate c

Ludmilka [50]

Answer:

$k=1.20x10^{-3} s^{-1}$

Explanation:

For a first order reaction the rate law is:

$v=\frac{-d[A]}{[A]}=k[A]$

Integranting both sides of the equation we get:

$\int\limits^a_b {\frac{d[A]}{[A]}} \, dx =-k\int\limits^t_0 {} \, dt$

where "a" stands for [A] (molar concentration of a given reagent) and "b" is {A]0 (initial molar concentration of a given reagent), "t" is the time in seconds.

From that integral we get the integrated rate law:

$ln\frac{[A]}{[A]_{0} } =-kt$

$[A]=[A]_{0}e^{-kt}$

$ln[A]=ln[A]_{0} -kt$

$k=\frac{ln[A]_{0}-ln[A]}{t}$

therefore k is

$k=\frac{ln1-ln0,485}{600}=1,20x10^{-3}$

8 0

3 years ago

Give the electron confiuration of Chromium (Cr), atomic number 24.

nadezda [96]

<span>Chromium is a transition metal and it has 24 electrons and here is the orbital diagram. If we're going to make this short hand and make the electron configurationfor this we would make this 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d4 okay from now on every time you see 3d4 you're going to change it, we do not like 3d4.</span>

4 0

3 years ago

Read 2 more answers