Atoms and Elements: Foundations

Presentación

Jugadas 0

Crear copia

Sobre esta actividad

Explore atomic structure and periodic basics.

Creada por

Elsa Dowdy

Estados Unidos

Descarga la versión para jugar en papel

Top 10 resultados

Todavía no hay resultados para este juego. ¡Sé el primero en aparecer en el ranking! Inicia sesión para identificarte.

Crea tu propio juego gratis desde nuestro creador de juegos

Compite contra tus amigos para ver quien consigue la mejor puntuación en esta actividad

Crear reto


Atoms and Elements: FoundationsVersión en línea Explore atomic structure and periodic basics. por Elsa Dowdy 1 Introduction to Atomic Theory Atoms are the building blocks of matter. Early ideas evolved into Dalton’s theory, shaping our understanding of chemical change and conservation of mass. 2 Dalton’s Atomic Theory Dalton proposed five postulates: matter is made of atoms; atoms are indivisible; all atoms of an element are identical; compounds are formed by combining atoms; and atoms rearrange in reactions. 3 Atoms vs. Ions Neutral atoms have equal protons and electrons. When electrons are gained or lost, particles become ions with positive or negative charges, altering properties. 4 Atomic versus Mass Number The atomic number (Z) counts protons, defining the element. The mass number (A) equals protons plus neutrons, indicating total nucleons. 5 Neutral Atoms and Electron Count In neutral atoms, Z equals the number of electrons. If electrons are removed or added, the balance shifts, creating ions with charges. 6 Isotopes and Atomic Mass Most elements exist as isotopic mixtures. The atomic mass on the periodic table is a weighted average of isotopes’ masses. 7 Subatomic Particles Protons (mass ~1 amu, +1), neutrons (~1 amu, 0), and electrons (~0.00055 amu, −1) compose atoms and define their behavior in reactions. 8 Electron Discovery & Models J.J. Thomson’s cathode-ray experiments revealed electrons as the first subatomic particle, leading to early atomic models and the plum pudding idea. 9 Nucleus and Rutherford Rutherford’s gold-foil experiments showed a dense nucleus at the center, with most atom volume being empty space and electrons surrounding the nucleus.

Atoms and Elements: FoundationsVersión en línea

Explore atomic structure and periodic basics.

por Elsa Dowdy

Introduction to Atomic Theory

Atoms are the building blocks of matter. Early ideas evolved into Dalton’s theory, shaping our understanding of chemical change and conservation of mass.

Dalton’s Atomic Theory

Dalton proposed five postulates: matter is made of atoms; atoms are indivisible; all atoms of an element are identical; compounds are formed by combining atoms; and atoms rearrange in reactions.

Atoms vs. Ions

Neutral atoms have equal protons and electrons. When electrons are gained or lost, particles become ions with positive or negative charges, altering properties.

Atomic versus Mass Number

The atomic number (Z) counts protons, defining the element. The mass number (A) equals protons plus neutrons, indicating total nucleons.

Neutral Atoms and Electron Count

In neutral atoms, Z equals the number of electrons. If electrons are removed or added, the balance shifts, creating ions with charges.

Isotopes and Atomic Mass

Most elements exist as isotopic mixtures. The atomic mass on the periodic table is a weighted average of isotopes’ masses.

Subatomic Particles

Protons (mass ~1 amu, +1), neutrons (~1 amu, 0), and electrons (~0.00055 amu, −1) compose atoms and define their behavior in reactions.

Electron Discovery & Models

J.J. Thomson’s cathode-ray experiments revealed electrons as the first subatomic particle, leading to early atomic models and the plum pudding idea.

Nucleus and Rutherford

Rutherford’s gold-foil experiments showed a dense nucleus at the center, with most atom volume being empty space and electrons surrounding the nucleus.

Puedes integrar el juego en un LMS compatible con LTI 1.1 o LTI 1.3 como Canvas, Moodle, o Blackboard. De esta manera podrás guardar las puntuaciones automáticamente en el libro de calificaciones de esa plataforma.