Biology, 23.06.2019 00:00 Amazingdolannn

How many neutrons does element x have if its atomic number is 29 and its mass number is 86?

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Answer from: HopeDied

The correct answer would be 57.

Atomic number is defined as the total number of protons in an atom. Thus, the number of protons in element X would be 29.

In addition, the mass number is defined as the sum of neutrons and protons present in an atom.

Therefore, the sum of the number of neutrons and protons in an element X would be 86.

Thus, the number of neutrons = Mass number- the number of protons

⇒86-29

⇒57

Hence, the number of neutrons would be equal to 57.

Answer from: chrischris1

Answer:

Element x will have 57 nutrons .

Atomic number: is the total number of protons.

Atomic mass: is the number of nutron + number of protons .

(57+29=86)

Calculation of nutrons: The mass number of an atom equals the number of protons plus the number of neutrons. Rearranging the equation, the number of neutrons equals the mass number minus the atomic number.

Number or nutrons = mass number - atomic number

86-29 = 57

Answer from: lflugo6oyn4sp

Answer:

Element x will have 57 nutrons .

Atomic number: is the total number of protons.

Atomic mass: is the number of nutron + number of protons .

(57+29=86)

Number or nutrons = mass number - atomic number

86-29 = 57

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homunculus represents the importance of various parts of your body as seen by your brain. as a result, they take up a lot of brain space. although the cortical homunculus is a curiosity, penfield's work in mapping the brain's relationship to the body was invaluable.

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