英文字典中文字典Word104.com



中文字典辭典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z   


安裝中文字典英文字典辭典工具!

安裝中文字典英文字典辭典工具!








  • Cations and Anions: Definitions, Examples, and Differences
    The chemical formula of a compound is always written with the cation first, followed by the anion For example, Na is the cation and Cl is the anion in NaCl (table salt)
  • Ion - Wikipedia
    A cation is something that moves down (Greek: κάτω, kato, meaning "down") and an anion is something that moves up (Greek: ἄνω, ano, meaning "up") They are so called because ions move toward the electrode of opposite charge
  • Cation vs Anion: Definition, Chart and the Periodic Table
    What is a cation? A cation has more protons than electrons, consequently giving it a net positive charge For a cation to form, one or more electrons must be lost, typically pulled away by atoms with a stronger affinity for them
  • Cations and Anions - Ions | ChemTalk
    A cation is an ion that has lost one or more electrons, giving a net positive charge Because one or more electrons are removed to form a cation, the cation of an atom is smaller than the neutral atom
  • The Difference Between a Cation and an Anion - ThoughtCo
    When writing the formula of a compound, the cation is listed before the anion For example, in NaCl, the sodium atom acts as the cation, while the chlorine atom acts as the anion
  • 1. 13: Ions: Atoms That Have Lost or Gained Electrons
    The cation produced in this way, Na +, is called the sodium ion to distinguish it from a neutral sodium atom The outermost shell of the sodium ion now has eight electrons in it, and the octet rule has been satisfied Figure 1 13 1 is a graphical depiction of this process Figure 1 13 1: The Formation of a Sodium Ion
  • 7. 3: Cations - Chemistry LibreTexts
    Summary Cations are formed by the loss of one or two electrons from an element Groups 1 and 2 elements form cations Cations are named according to the pare nt element Cation charges are indicated with a superscript following the chemical symbol
  • Anion vs Cation - Difference and Comparison | Diffen
    A cation is an atom or a molecule which is positively charged, i e has more number of protons than electrons Anion originated from the Greek word ano, meaning ‘up’ The word cation originated from its Greek counterpart kata, which means ‘down’


















中文字典-英文字典  2005-2009

|中文姓名英譯,姓名翻譯 |简体中文英文字典