Bohr Model: Phosphorus Diagram

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Questions and Answers

What is the term for a negatively charged particle in an atom?

  • Valence Electron
  • Electron (correct)
  • Neutron
  • Proton

What is the first shell of an atom?

First Shell

What is the second shell of an atom?

Second Shell

What is the third shell of phosphorus called?

<p>Third Shell</p> Signup and view all the answers

There are 15 protons in the nucleus of phosphorus.

<p>True (A)</p> Signup and view all the answers

There are 16 neutrons in the nucleus of phosphorus.

<p>True (A)</p> Signup and view all the answers

What is the limit of electrons in each shell of a Bohr Model?

<p>2 in the first shell, 8 in the second, 8 in the third</p> Signup and view all the answers

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Study Notes

Electron

  • Subatomic particle with a negative charge
  • Fundamental component of atoms

First Shell

  • Closest shell to the nucleus of an atom
  • Can hold a maximum of 2 electrons

Second Shell

  • The second energy level surrounding the nucleus
  • Holds up to 8 electrons

Third Shell

  • The final shell present in a phosphorus atom
  • Contains valence electrons which are crucial for chemical bonding

There are 15 Protons in the Nucleus

  • Protons are positively charged particles located in the nucleus
  • The number of protons determines the atomic number and identity of the element (Phosphorus has atomic number 15)

There are 16 Neutrons in the Nucleus

  • Neutrons are neutral particles in the nucleus that contribute to atomic mass
  • The number of neutrons plus protons equals the atomic mass (Phosphorus atomic mass ≈ 31)

Electron Arrangement in Bohr Model

  • Electrons are arranged in shells like a clock:
    • First shell: 12:00 and 6:00
    • Second shell: 3:00, 9:00, and repeat
  • Each shell has a specific limit on the number of electrons it can hold: 2 in the first, 8 in the second, and 8 in the third, following a pattern.

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