Question

ЭЛЕКТРОННАЯ ФОРМУЛА АТОМА МАГНИЯ

Answer 1

Електронна формула: Ne 3s2

Answer 2

Electron Configuration of Magnesium Atom

The electron configuration of a magnesium (Mg) atom can be represented using the notation 1s^2 2s^2 2p^6 3s^2 This notation describes the distribution of electrons in different energy levels or orbitals of the atom.

Here is a breakdown of the electron configuration of a magnesium atom:

- The first energy level (n=1) has 2 electrons in the 1s orbital. - The second energy level (n=2) has 2 electrons in the 2s orbital and 6 electrons in the 2p orbital. - The third energy level (n=3) has 2 electrons in the 3s orbital.

In summary, the electron configuration of a magnesium atom is 1s^2 2s^2 2p^6 3s^2.

Atomic Structure of Magnesium

Magnesium (Mg) is a chemical element with the atomic number 12 and the symbol Mg It belongs to the alkaline earth metals group (Group 2) in the periodic table.

The atomic structure of magnesium can be described as follows:

- Atomic number: 12 - Atomic mass: Approximately 24.305 atomic mass units (amu)- Electron configuration: 1s^2 2s^2 2p^6 3s^2- Number of protons: 12 - Number of neutrons: Varies (usually 12) - Number of electrons: 12 - Valence electrons: 2 - Chemical symbol: Mg

Physical and Chemical Properties of Magnesium

Magnesium is a silver-white metal that is relatively light and has a low density. It is a fairly reactive metal and can react with various substances. Some key properties of magnesium include:

- Melting point: Approximately 650 degrees Celsius (923 Kelvin)- Boiling point: Approximately 1090 degrees Celsius (1363 Kelvin)- Density: 1.738 grams per cubic centimeter- Atomic radius: 1.53 angstroms (angstrom is a unit of length) for magnesium- Oxidation states: Magnesium commonly exhibits an oxidation state of +2- Crystal structure: Hexagonal close-packed (hcp)

Compounds and Reactions Involving Magnesium

Magnesium can form various compounds and participate in chemical reactions. Here are a few examples:

- Magnesium chloride (MgCl2): This compound is formed when magnesium reacts with chlorine. The balanced chemical equation for this reaction is 2 Mg + Cl2 → 2 MgCl2. - Magnesium hydroxide [Mg(OH)2]: This compound is formed when magnesium reacts with water. The balanced chemical equation for this reaction is Mg + 2 H2O → Mg(OH)2 + H2. - Magnesium carbonate [MgCO3]: This compound can be formed when magnesium reacts with carbon dioxide. The balanced chemical equation for this reaction is Mg(OH)2 + CO2 → MgCO3 + H2O.

These are just a few examples of the compounds and reactions involving magnesium.

Conclusion

In summary, the electron configuration of a magnesium atom is 1s^2 2s^2 2p^6 3s^2. Magnesium is a chemical element with atomic number 12 and symbol Mg. It has various physical and chemical properties, and it can form compounds through reactions with other elements.