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Hace 19 horas · Hahn and Lise Meitner discovered isotopes of the radioactive elements radium, thorium, protactinium and uranium. He also discovered the phenomena of atomic recoil and nuclear isomerism, and pioneered rubidium–strontium dating.
Hace 3 días · Un modelo atómico es una representación teórica que describe la estructura y el comportamiento del átomo. A lo largo de la historia, estos modelos han evolucionado para explicar los resultados experimentales y las observaciones científicas de la época.
Hace 1 día · Werner Karl Heisenberg (/ ˈhaɪzənbɜːrɡ /; [2] German: [ˈvɛʁnɐ kaʁl ˈhaɪzn̩bɛʁk] ⓘ; 5 December 1901 – 1 February 1976) [3] was a German theoretical physicist, one of the main pioneers of the theory of quantum mechanics, and a principal scientist in the Nazi nuclear weapons program during World War II.
Hace 3 días · Descubra las 10 innovaciones más impactantes en ciencia y física nucleares que están revolucionando nuestra comprensión y uso del átomo.
Hace 4 días · His famous disciple, Democritus of Abdera, named the building blocks of matter atomos, meaning literally “indivisible,” about 430 bce. Democritus believed that atoms were uniform, solid, hard, incompressible, and indestructible and that they moved in infinite numbers through empty space until stopped.
Hace 4 días · Atomic model. Most matter consists of an agglomeration of molecules, which can be separated relatively easily. Molecules, in turn, are composed of atoms joined by chemical bonds that are more difficult to break. Each individual atom consists of smaller particles—namely, electrons and nuclei.
Hace 1 día · The shapes of the first five atomic orbitals are: 1s, 2s, 2p x, 2p y, and 2p z. The two colors show the phase or sign of the wave function in each region. Each picture is domain coloring of a ψ (x, y, z) function which depends on the coordinates of one electron. To see the elongated shape of ψ (x, y, z)2 functions that show probability ...
