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solong [7]
4 years ago
10

An atom of magnesium has an atomic number of 12 and a mass number of 24. how many neutrons are in the neclues

Chemistry
2 answers:
MrRa [10]4 years ago
6 0
Magnesium has 12 protons and 12 neutrons.
Andrew [12]4 years ago
6 0

Answer : The number of neutrons present in the nucleus are, 12 neutrons.

Explanation :

Atomic number is defined as the number of protons or number of electrons.

Atomic number = number of protons = number of electrons

Mass number is defined as the sum of number of protons and number of neutrons.

Number of neutrons = Mass number - Number of protons

As we are given :

Atomic number = 12

Mass number = 24

For neutral atom, the number of protons will be:

Atomic number = Number of protons = Number of electrons = 12

Now we have to determine the number of neutrons for magnesium element.

Number of neutrons = Mass number - Number of protons

Number of neutrons = 24 - 12

Number of neutrons = 12

Therefore, the number of neutrons present in the nucleus are, 12 neutrons.

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1b<br>Describe the terms below:<br>2. adiabatic process​
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3 years ago
If the moxie tank has an initial pressure of 50 atm in the winter what will be the pressure in summer
elena55 [62]

The pressure of the Moxie's tank in the summer will be 110.5 atm.

The correct option is C.

<h3>What is pressure law?</h3>

According to the pressure law, if the volume remains constant, for a given mass of gas, the pressure applied to the container's sidewalls is directly proportional to the gas's absolute temperature.

<h3>Briefing:</h3>

This law can be expressed mathematically as

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where

P₁ is the starting pressure.

The final pressure is P₂.

The starting temperature is T₁

The final temperature is T₂

The pressure of the gas increases as its temperature does.

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The complete question is -

If the Moxie's tank has an initial pressure of 50 atm in the winter, what will be point the pressure in the summer?

A. 5.88 atm

B. 22.6 atm

C. 110.5 atm

3 0
1 year ago
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