Astronomy

Argon (H9)

Argon (Ar) is a chemical element belonging to the category Noble gas, with atomic number 18 and standard atomic mass 39.9480 u. This sheet describes its fundamental properties, periodic position and physical characteristics.

Chlorine (H8)

Chlorine (Cl) is a chemical element belonging to the category Halogen, with atomic number 17 and atomic mass 35.4500 u. This sheet describes its fundamental properties, periodic position and physical characteristics.

Sulfur (H7)

Sulfur (S) is a chemical element belonging to the category Non-metal, with atomic number 16 and atomic mass 32.0600 u. This sheet describes its fundamental properties, periodic position and physical characteristics.

Phosphorus (H6)

Phosphorus (P) is a non-metal element of group 15 with atomic number 15 and atomic mass 30.974 u.

Silicon (H5)

Silicon (Si) is a metalloid with atomic number 14 and atomic mass 28.0850 u. This sheet describes its fundamental properties, periodic position and physical characteristics.

Aluminium (H4)

Aluminium (Al) is a post-transition metal with atomic number 13 and atomic mass 26.9815 u. This sheet describes its fundamental properties, periodic position and physical characteristics.

Magnesium (H3)

Magnesium (Mg) is a chemical element belonging to the category Alkaline earth metal, with atomic number 12 and standard atomic mass 24.305 u. This sheet describes its fundamental properties, periodic position and physical characteristics.

Sodium (H2)

Sodium (Na) is a chemical element belonging to the category Alkali metal, with atomic number 11 and atomic mass 22.9900 u.

Neon (H1)

Neon (Ne) is a chemical element belonging to the category Noble gas, with atomic number 10 and atomic mass 20.1800 u. This sheet describes its fundamental properties, periodic position and physical characteristics.

Fluorine (G9)

Fluorine (F) is a halogen with atomic number 9 and atomic mass 18.9984 u. This data sheet describes its fundamental properties, position in the periodic table, and physical characteristics.

Oxygen (G8)

Oxygen (O) is a chemical element belonging to the category Non-metal, with atomic number 8 and standard atomic mass 15.9990 u. This sheet describes its fundamental properties, periodic position and physical characteristics.

Nitrogen (G7)

Nitrogen (N) is a non-metal with atomic number 7 and atomic mass 14.007 u. This data sheet describes its fundamental properties, position in the periodic table and main physical characteristics.

Carbon (G6)

Carbon (C) is a chemical element belonging to the category Non-metal, with atomic number 6 and atomic mass 12.0110 u. This sheet describes its fundamental properties, periodic position and physical characteristics.

Boron (G5)

Boron (B) is a chemical element belonging to the category metalloid, with atomic number 5 and atomic mass 10.8100 u. This sheet describes its fundamental properties, periodic position and physical characteristics.

Beryllium (G4)

Beryllium (Be) is positioned in group 2 as an alkaline earth metal, but its chemical behaviour is highly anomalous compared to the rest of the group. Due to its small ionic radius and high ionization energy, it forms mainly covalent compounds and shows a pronounced diagonal relationship with aluminium.

Lithium (G3)

Lithium (Li) is a chemical element belonging to the category Alkali metal, with atomic number 3 and atomic mass 6.9400 u. This sheet describes its fundamental properties, periodic position and physical characteristics.

Helium (G2)

Helium (He) is a chemical element belonging to the category Noble gas, with atomic number 2 and atomic mass 4.0026 u. This sheet describes its fundamental properties, periodic position and physical characteristics.

Hydrogen (G1)

Hydrogen (H) is a chemical element belonging to the category Non-metal, with atomic number 1 and atomic mass 1.0080 u. This sheet describes its fundamental properties, periodic position and physical characteristics.

Neptune (F9)

Neptune is an icy giant dominated by a cold, dynamic fluid envelope. Its internal layers, active atmosphere and orbital interactions form a system structured by gradients, circulation and rotation.

Uranus (F8)

Uranus is an icy giant with a cold fluid envelope, gradual internal layers and a strongly tilted axis. Its deep and atmospheric structures form a system organized by gradients and distinct rotational dynamics.