All
Research
Education
Pesquisa
Educação
Business
Soluções
PT
EN - English
CN - 中文
DE - Deutsch
ES - Español
KR - 한국어
IT - Italiano
FR - Français
PT - Português
TR - Türkçe
JA - 日本語
PL - Polski
RU - Русский
HE - עִברִית
AR - العربية
Entrar
Chapter 2
The earliest recorded discussion of the basic structure of matter comes from ancient Greek philosophers. Leucippus and Democritus argued that all matter ...
Dalton was only partially correct about the particles that make up matter. All matter is composed of atoms, and atoms are composed of three smaller ...
A chemical symbol is an abbreviation used to indicate an element or an atom of an element. For example, the symbol for mercury is Hg. The same symbol is ...
In ordinary chemical reactions, the nucleus — which contains the protons and neutrons of each atom and thus identifies the element — remains ...
As early chemists discovered more elements, they realized that various elements could be grouped by their similar chemical behaviors. One such grouping ...
Atoms — and the protons, neutrons, and electrons that compose them — are extremely small. For example, a carbon atom weighs less than 2 ...
The identity of a substance is defined not only by the types of atoms or ions it contains but by the quantity of each type of atom or ion. For example, ...
Privacidade
Termos de uso
Políticas
Entre em contato
recomende à biblioteca
Newsletter
JoVE Journal
Coleções de métodos
JoVE Encyclopedia of Experiments
Arquivo
JoVE Core
JoVE Science Education
JoVE Lab Manual
JoVE Quiz
JoVE Playlist
Autores
Bibliotecários
Acesso
SOBRE A JoVE
JoVE Sitemap
Copyright © 2025 MyJoVE Corporation. Todos os direitos reservados