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3 years ago

What is the term that is used to describe a key factor required to start a fission reaction?

Chemistry

2 answers:

Gre4nikov [31]3 years ago

4 0

I THINK its (A)

Maybe...

denis-greek [22]3 years ago

3 0

Answer: Option (A) is the correct answer.

Explanation:

When a large atomic nuclei splits into two small atomic nuclei along with release of energy then this process is known as nuclear fission reaction.

For example, $^{235}_{92}U + ^{1}_{0}n \rightarrow ^{236}_{92}U \rightarrow ^{92}_{36}Kr + ^{141}_{56}Ba + 3^{1}_{0}n$

A chain reaction is defined as the reaction in which products formed themselves lead to continuation of reaction again and again.

Hence, the neutrons released in the nuclear fission reaction again and again bombard with the uranium atom. Therefore, a chain reaction will be initiated.

Thus, we can conclude that the term that is used to describe a key factor required to start a fission reaction is chain reaction.

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John dalton said that all atoms are identical in size and mass. explain why this is incorrect.

andrew11 [14]

This question can be explained in a variety of ways, but the easiest can be that elements exist, and since each has a different atomic mass, all atoms are not identical in size and mass.

4 0

3 years ago

The wavelength of a photon that has an energy of 7.53* 10^-32

Molodets [167]

Answer:

= 2.64 × 10^7 m

Explanation:

Energy is given by the formula;

E = hc/λ

Where h is Planck’s constant (= 6.626 x 10^-34 Js), c is the speed of light (3.00 x 108 m/s) and λ is the wavelength in meters.

Therefore, wavelength will be given by;

λ = hc/E

= (6.626× 10^-34 × 3 × 10^8)/(7.53 × 10^-32)

= 2.64 × 10^7 m

5 0

4 years ago

How many p-orbitals are occupied in a Ar atom?

Orlov [11]

Answer:

Explanation:

p orbital can hold up to six electron. Argon electron configuration will be 1s²2s²2p⁶3s²3p⁶

6 0

3 years ago

Read 2 more answers

Guy plzz help me the this and thanks

ad-work [718]

Answer:

Explanation:

In first picture,

When rock was not in the cylinder,

Volume of water

$= {18cm}^{3}$

In second picture, 

When rock is in the cylinder,

Volume of water

$= {36cm}^{3}$

Hence,

Volume of rock

$= 36 {cm}^{3} - {18cm}^{3}$

$= 18 {cm}^{3} (ans)$

4 0

3 years ago

Which type of bonding is characterized by overlapping orbitals that allow outer electrons of atoms to move about freely througho

Sonja [21]

Answer:

D metallic

Explanation:

The chemical bonding which rises from electrostatic attractive force between the conduction electrons and the positively charged metal ions is called metallic bonding.

It is sharing of the free electrons among the structure of the positively charged ions which are known as cations.

In this type of bonding, these free electrons freely move in the crystal mattice of the metal.

The bonding accounts for properties of metals, such as ductility, strength, electrical and thermal conductivity and resistivity and luster.

6 0

3 years ago