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Atoms and periodic table

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  • What is the element with valence shell of 4s2 3d4?
    chromium
  • What is the name for the atoms that can be positively or negatively charged?
    Ions
  • What element is bigger: K or Se?
    K
  • What element is bigger: Li or Rb?
    Rubidium
  • Which one has more metallic character: Na or P
    Na
  • What atomic model is called plum pudding model?
    Thomson's model
  • How many electrons can be in an p orbital?
    6
  • How many electrons can be in an s orbital?
    2
  • What is called the particle with positive charge?
    Cation
  • What is called the atom with negative charge?
    Anion
  • How many protons has this atom?
    12
  • What is the element with valence shell of 2s2 2p6?
    Neon
  • How many electrons can be in an 2 orbital?
    2
  • Which one has more metallic character: Be or Ba
    Barium
  • What is the particle with positive charge?
    Proton
  • How are called the particles that have the same atomic mass but different mass number?
    Isotopes
  • How many electrons can be in an f orbital?
    14
  • What is the name of the principle that states that the most stable configuration is the one with the most electrons with the same spin?
    Hund's rule of maximun multiplicity
  • What atomic model says that the electrons are in orbits?
    Rutherford's model
  • What is the particle con negative charge?
    Electron
  • What is called valence shell?
    The last layer of the atom.
  • What is the name of the property in which the atom has tendency to lose electrons.
    Metallic character
  • What atoms has the valence shell 3s2?
    magnesium
  • What is the element with valence shell of 3s2 3p5?
    Chlorine
  • What is the name of the principle that states that the electron ocxupy the lowest energy orbital available?
    The principle of minimum energy