Buscar

MEMORY.COM
4.37.48

Invitado

Iniciar sesión Página de inicio

Modo oscuro

Identificador de usuario: 999999
Versión: 4.37.48

www.memory.es

Estás en modo de exploración. debe iniciar sesión para usar MEMORY

Inicia sesión para empezar

Iniciar sesión / registrarse para comenzar »

Confused? » Read about learn, practice and the various modes

» To start learning, click login

1 / 22

[Front]

Matter whose composition does not change from one sample to another made of a single type of atom or molecule all samples have the same characteristics.

[Back]

pure substance

Practique preguntas conocidas

Manténgase al día con sus preguntas pendientes

Completa 5 preguntas para habilitar la práctica

Exámenes

Examen: pon a prueba tus habilidades

Pon a prueba tus habilidades en el modo de examen

Aprenda nuevas preguntas

Modos dinámicos

InteligenteMezcla inteligente de todos los modos

PersonalizadoUtilice la configuración para ponderar los modos dinámicos

Modo manual [beta]

Seleccione sus propios tipos de preguntas y respuestas

Modos específicos

Aprende con fichas

Completa la oración

Escuchar y deletrearOrtografía: escribe lo que escuchas

elección múltipleModo de elección múltiple

Expresión oralResponde con voz

Expresión oral y comprensión auditivaPractica la pronunciación

EscrituraModo de solo escritura

(LEC) PHARMACEUTICAL INORGANIC CHEMISTRY (1ST SEMESTER) - Marcador

1 usuario ha completado este curso

Ningún usuario ha jugado este curso todavía, sé el primero

(LEC) PHARMACEUTICAL INORGANIC CHEMISTRY (1ST SEMESTER) - Detalles

Niveles:

1) Chapter 1 Visualizar

Preguntas:

22 preguntas

🇬🇧		🇬🇧

Matter whose composition does not change from one sample to another made of a single type of atom or molecule all samples have the same characteristics.

Pure substance

Matter whose composition may vary from one sample to another two or more types of atoms or molecules combined in variable proportions composition varies, different samples have different characteristics.

Mixture

Pure substances that cannot be decomposed into simpler substances by chemical reactions

Elements

Substances that can be decomposed

Compounds

Bohr's atomic model is also called

The planetary model

"Alpha particles, Gold Foil Experiment" discovery of alpha particles, positively charged particles emitted from radioactive elements Devised an experiment to investigate the structure of positive and negative charges in the atom concluded that an atom had a small, dense, positively charged center that repelled its positively charged “bullets.” He called the center of the atom the “nucleus” The nucleus is tiny compared to the atom as a whole.

Ernest Rutherford (1871 - 1937)

The first credited for the discovery of the atom

Democritus (400 B.C.E)

Proposed the Atomic Theory of Matter in 1803 Solid Sphere Model or Bowling Ball Model

John Dalton

Negatively charged electrons (raisins or blueberries) are surrounded by a positively charged "pudding" (or muffin) Proposed in 1904 Plum Pudding Model or Blueberry Muffin Model

J.j Thomson Atomic Model

Discovered the neutron in 1932

James Chadwick

Canal Rays and Protons (1886) He noted streams of positively charged particles in cathode rays in 1886 Canal Rays must be positive

Eugene Goldstein

Discovery of the Electron

J.J Thomson

Father of Modern Chemistry

Antoine-Laurent Lavoisier

Meyer and Mendeleev arranged the periodic table according to

Atomic weights

Father of Modern Periodic Table.

Henry Moseley

Atoms that have the same atomic number (Z) but different mass numbers (A).

Isotopes

Periodic Trend: Ionization energy. From Bottom to Top. increases or decreases?

Increases

Bohr's atomic model is also called

The planetary model

He used the Law of Octaves in arranging the periodic table.

John Newlands

Is a variant of a substance consisting of only one type of atom. a new molecular configuration with new physical properties

Allotrope

Developed "Triads", groups of 3 elements with similar properties.

Johann Dobereiner

"Triads", groups of 3 elements with similar properties.

1 Lithium, Sodium and Potassium 2 Calcium, Strontium and Barium 3 Chlorine, Bromine and Iodine 4 Sulfur, Selenium and Tellurium