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Likurg_2 [28]
3 years ago
9

How many of the following atomic particles does a neutral magnesium

Chemistry
1 answer:
VARVARA [1.3K]3 years ago
3 0

Answer:

\boxed{\text{12 p, 12 n, and 12 e}}

Explanation:

No atoms of Mg have a mass of 24.3050 u. That is the average mass of all the isotopes of Mg.

However, the most common isotope of Mg is ₁₂²⁴Mg (mass = 23.99 u)

The atomic number of Mg is 12. It has 12 protons.

The atomic mass of ²⁴Mg is 24. That's the total number of protons and neutrons.

 p + n = 24

12 + n = 24

       n = 12

An atom of ²⁴Mg has 12 neutrons.

If the atom is neutral, the number of electrons equals the number of protons.

e = p = 12

\text{An atom of }$^{24}$\text{Mg contains }\boxed{\textbf{12 p, 12 n, and 12 e}}

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