Articles

172 articles

• Chemical element

  Lutecio

  Lutecio (Lu) is a chemical element belonging to the category Inner transition metal, with atomic number 71 and atomic mass 174.9700 u. This sheet describes its fundamental properties, periodic position and physical…

• Astronomical type

  M-type asteroid

  An M-type asteroid is a metallic body of the solar system, mainly composed of iron and nickel, with a reflective surface indicating a dense and differentiated composition.

• Chemical element

  Magnesium

  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…

• Chemical element

  Manganese

  Manganese (Mn) is a chemical element belonging to the category Transition metal, with atomic number 25 and atomic mass 54.9380 u. This sheet describes its fundamental properties, periodic position and physical…

• Celestial object

  Mars

  Mars is a rocky body shaped by a cold surface, scattered sediments and an extremely thin atmosphere, where ice, dust, rocks and atmospheric circulation interact to form a contrasting environment.

• Chemical element

  Meitnerio

  Meitnerio (Mt) is a synthetic chemical element belonging to the category Transition metal, with atomic number 109 and atomic mass 276.0000 u. This sheet describes its fundamental properties, periodic position and…

• Chemical element

  Mendelevium

  Mendelevium (Md) is a synthetic actinide chemical element of atomic number 101 and atomic mass ~258 u. This sheet describes its fundamental properties, periodic-table position and physical characteristics.

• Chemical element

  Mercury

  Mercury (Hg) is a chemical element belonging to the category Transition metal, with atomic number 80 and atomic mass 200.5900 u. This sheet describes its fundamental properties, periodic position and physical…

• Celestial object

  Mercury

  The smallest and closest planet to the Sun, Mercury orbits rapidly and shows a cratered surface with extreme temperature variations from -173°C to 427°C.

• Chemical element

  Molybdenum

  Molybdenum (Mo) is a refractory transition metal with atomic number 42 and atomic mass 95.95 u. It is known for its very high melting point, strength at high temperatures and essential biological catalytic role.

• Body type

  Moon

  A moon is a natural satellite orbiting a planet or a more massive object, playing an important role in gravitational balance and tidal phenomena.

• Chemical element

  Moscovium

  Moscovium (Mc) is a synthetic superheavy element of the p-block, group 15, period 7, with atomic number 115 and an estimated atomic mass [289] u. This sheet describes its basic properties, periodic position and…

• Chemical element

  Neodymium

  Neodymium (Nd) is a chemical element belonging to the category Inner transition metal, with atomic number 60 and atomic mass 144.2400 u. This sheet describes its fundamental properties, periodic position and physical…

• Chemical element

  Neon

  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.

• Celestial object

  Neptune

  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.

• Chemical element

  Neptunium

  Neptunium (Np) is a chemical element belonging to the category Inner transition metal, with atomic number 93 and atomic mass 237.0000 u. This sheet describes its fundamental properties, periodic position and physical…

• Classification

  Netherion

  Netherion-class planets are small icy bodies located in the outer regions of stellar systems, covered with volatile ices and exhibiting complex, unstable orbits.

• Chemical element

  Nickel

  Nickel (Ni) is a transition metal with atomic number 28 and atomic mass 58.693 u. This sheet describes its fundamental properties, periodic position and physico-chemical characteristics.

• Chemical element

  Nihonio

  Nihonio (Nh) is a chemical element belonging to the category Post-transition metal, with atomic number 113 and atomic mass 286.0000 u. This sheet describes its fundamental properties, periodic position and physical…

• Chemical element

  Niobium

  Niobium (Nb) is a chemical element belonging to the category Transition metal, with atomic number 41 and atomic mass 92.9060 u. This sheet describes its fundamental properties, periodic position and physical…

• Chemical element

  Nitrogen

  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.

• Chemical element

  Nobelio

  Nobelio (No) is a chemical element belonging to the category Inner transition metal, with atomic number 102 and atomic mass 259.0000 u. This sheet describes its fundamental properties, periodic position and physical…

• Astronomical type

  Non-Periodic Comet

  Comet with hyperbolic or parabolic orbit that passes only once through the inner planetary system before being ejected into interstellar space by gravitational perturbations.

• Chemical element

  Oganesson

  Oganesson (Og) is a chemical element belonging to the category Noble gas, with atomic number 118 and atomic mass 294.0000 u. This sheet describes its fundamental properties, periodic position and physical…

• Chemical element

  Osmium

  Osmium (Os) is a chemical element belonging to the category Transition metal, with atomic number 76 and atomic mass 190.2300 u. This sheet describes its fundamental properties, periodic position and physical…

• Chemical element

  Oxygen

  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…

• Chemical element

  Palladium

  Palladium (Pd) is a chemical element belonging to the category Transition metal, with atomic number 46 and atomic mass 106.4200 u. This sheet describes its fundamental properties, periodic position and physical…

• Chemical element

  Phosphorus

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

• Body type

  Planet

  A planet is a celestial body orbiting a star, with enough mass to become spherical and to clear other significant objects from its orbital neighborhood.

• Chemical element

  Platinum

  Platinum (Pt) is a chemical element belonging to the category Transition metal, with atomic number 78 and atomic mass 195.0800 u. This sheet describes its fundamental properties, periodic position and physical…

• Chemical element

  Plutonium

  Plutonium (Pu) is a chemical element belonging to the actinide series (inner transition metals), with atomic number 94 and atomic mass 244.0000 u. This sheet describes its fundamental properties, periodic position and…

• Chemical element

  Polonio

  Polonio (Po) is a chemical element belonging to the category Post-transition metal, with atomic number 84 and atomic mass 208.9824 u. This sheet describes its fundamental properties, periodic position and physical…

• Chemical element

  Potassium

  Potassium (K) is a chemical element belonging to the category Alkali metal, with atomic number 19 and atomic mass 39.0983 u. This sheet describes its fundamental properties, periodic position and physical…

• Chemical element

  Praseodymium

  Praseodymium (Pr) is a chemical element belonging to the category Inner transition metal, with atomic number 59 and atomic mass 140.9100 u. This sheet describes its fundamental properties, periodic position and physical…

• Chemical element

  Promethium

  Promethium (Pm) is a chemical element belonging to the category Inner transition metal (lanthanide), with atomic number 61 and atomic mass 145.0000 u. This sheet describes its fundamental properties, periodic position…

• Chemical element

  Protaktinio

  Protaktinio (Pa) is a chemical element belonging to the category Inner transition metal, with atomic number 91 and atomic mass 231.0360 u. This sheet describes its fundamental properties, periodic position and physical…

• Classification

  Pyrogiants

  Pyrogiants are massive gas planets orbiting very close to their star, characterized by extreme temperatures, ionized atmospheres, metallic vapors, fast winds, and large thermal contrasts.

• Chemical element

  Radium

  Radium (Ra) is a chemical element belonging to the category Alkaline earth metal, with atomic number 88 and atomic mass 226.0000 u. This sheet describes its fundamental properties, periodic position and physical…

• Chemical element

  Radon

  Radon (Rn) is a chemical element belonging to the category Noble gas, with atomic number 86 and atomic mass 222.0000 u. This sheet describes its fundamental properties, periodic position and physical characteristics.

• Chemical element

  Rhenium

  Rhenium (Re) is a chemical element belonging to the category Transition metal, with atomic number 75 and atomic mass 186.2070 u. This sheet describes its fundamental properties, periodic position and physical…