Question

Q. Calculate the atomic weight of magnesium.​

Answer 1

Explanation:

Atomic no. of magnesium is 12 so it's weight is almost twice of it ie. 24 a.m.u.

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Answer 2

Atomic mass is the sum of number of protons and of neutrons.

Nitrogen contains twelve protons and twelve neutrons in it.

So, it's atomic mass is 24.

i.e.

Atomic Mass of Nitrogen = Number of protons + Number of neutrons

=> 12 + 12

=> 24 u (amu)

$\textbf{24 u is the Atomic Mass of}$

$\textbf{Magnesium.}$

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✡ More information :

• Atomic number of magnesium is 12.

• It's symbol is Mg.

• It contains 12 protons, electrons and neutrons in it.

• It is gray in colour.

• It is the eight most abundant element in the Earth's crust.

• It helps in controlling blood sugar level.

• It is a metal.

• It's melting point is 650°C

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