Assertion: The average mass of one Mg atom is `24.305 amu`, which is not actual mass of one Mg atom.
Reason: Three isotopes, `24 Mg, 25 Mg and 26 Mg`, of Mg are found in nature.

Calculate the mass in gm of 2g atom of Mg-

Calculate the mass in gm of 2g atom of Mg-

Average atomic mass of magnesium is 24.31amu. This magnesium is composed of 79 mole % of 24 Mg and remaining 21 mole % of 25Mg and 26 Mg. Calculate mole % of 26 Mg.

The number of atoms in 0.004 g of magnesium is close to (atomic mass of Mg = 24)

Average atomic mass of magnesium is 24.31 amu. This magnesium is composed of 79 mole % of 24mg and remaining 21 mole % of 25mg and 25mg . Calculate mole % of 26mg .

Average atomic mass of magnesium is 24.31 amu. This magnesium is composed of 79 mole % of 24mg and remaining 21 mole % of 25mg and 25mg . Calculate mole % of 26mg .

In a periodic table, the average atomic mass of magnesium is given as 24.312 u . The average value is based on their relative natural abundance on earth. The three isotopes and their masses are ._12Mg^(24) (23.98504u) , ._(12)Mg^(25) (24.98584) and ._12Mg^(26) (25.98259 u) . The natural abundance of ._12Mg^(24) is 78.99% by mass. Calculate the abundances of the other two isotopes.

In magnesium sulphide, the ratio by mass of Mg and S is 3:4. What is the ratio of number of Mg and S atoms?