The atomic number of magnesium is 12 and the mass number is 24.305
use the Periodic Table it gives you all the info you need :D
The atomic number of magnesium (Mg) is 12. The atomic weight of Mg is 24.3050 grams per mole.
See the Web Links to the left of this answer for a Periodic Table with more information about this element!
Magnesium is a metal element. atomic number of it is 12.
The atomic number of magnesium is 12 and the mass number is 24.305
use the periodic table it gives you all the info you need :D
Atomic number of magnesium = 12 Atomic number of oxygen = 8 Formula of magnesium oxide = MgO = atomic number of 20(12+8)
Magnesium is a metal element. Mass number of it is 24.
The mass number for magnesium is 24.
mass number- 24
atomic number- 12
24
An atomic mass of 12 means carbon, and its atomic number is 6.
This can be found using one of the most important constants for chemistry: Avogadro's number. According to wikipedia, the standard atomic weight of magnesium is 24.3050 grams per mole. Using Avogadro's number, we know there's 6.0221415 × 1023 atoms per mole, so if you divide the standard atomic weight of magnesium by Avogadro's number, you can get number of grams per atom of magnesium (i.e. the mass of a single magnesium atom in grams). (24.3050 g/mole) / (6.0221415 x 1023 atoms/mole) = 4.03564 g/atom
Mg: 24.305 K: 39.0983
12 protons 14 neutrons
Magnesium is a meta element. Atomic mass of it is 24.
That is the average atomic mass for Mg.
Magnesium (Mg) is the nearest with a mass of 24.3050
An atomic mass of 12 means carbon, and its atomic number is 6.
This can be found using one of the most important constants for chemistry: Avogadro's number. According to wikipedia, the standard atomic weight of magnesium is 24.3050 grams per mole. Using Avogadro's number, we know there's 6.0221415 × 1023 atoms per mole, so if you divide the standard atomic weight of magnesium by Avogadro's number, you can get number of grams per atom of magnesium (i.e. the mass of a single magnesium atom in grams). (24.3050 g/mole) / (6.0221415 x 1023 atoms/mole) = 4.03564 g/atom
For this you need the atomic mass of Mg. Take the number of grams and divide it by the atomic mass. Multiply by one mole for units to cancel.4.637 grams Mg / (24.3 grams) = .191 moles Mg
Magnesium is a metal element. Atomic mass of it is 24.
Add the atomic masses of each element present. It would be atomic mass of Mg + 2x atomic mass of oxygen + 2x atomic mass of hydrogen.
The atomic mass of Mg is 24.3 amu.
Magnesium is a meta element. Atomic mass of it is 24.
Mg: 24.305 K: 39.0983
12 protons 14 neutrons
The atomic number of magnesium is 12. Its nucleus must contain 12 protons and no electrons. The atomic number of an atom is determined by the number of protons. Electrons are not in the nucleus.