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

Answer from: Quest

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.

Answer from: Quest

a chair, a bed, and a toothbrush

explanation:

i was told this before by a teacher, so yeah

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