Chemistry

• What Is The Equation To Calculate Ar?

  Ar = (% of Isotope 1 X Mr of Isotope 1)+(% of Isotope 2 X Mr of Isotope 2) / 100
• What Is The Molecular Mass Of H₂SO4?

  • H = 2 X 1 = 2
  • S = 1 X 32 = 32
  • O = 4 X 16 = 64
  • 32 + 64 + 2
  • Molecular mass is 98
• How Many Protons, Neutrons And Electrons Are In Phosphorous?

  • Protons: 15
  • Neutrons: 16
  • Electrons: 15
• How Many Protons, Neutrons And Electrons Are In Carbon?

  • Protons: 6
  • Neutrons: 6
  • Electrons: 6
• How Many Protons, Neutrons And Electrons Are In Bromine?

  • Protons: 35
  • Neutrons: 45
  • Electrons: 35
• How Can We Know The Number Of Protons, Neutrons And Electrons In An Element?

  • Small number is the number of protons (the atomic number)
  • Massive number is the mass number.
  • The mass number is the number of protons and neutrons added together.
  • The number of electrons is the same amount of protons in an atom.
• What Does An Elements Mass Number Tell Us?

  • It tells us the number of protons and neutrons there are in an atom.
• What Does An Elements Atomic Number Tell Us?

  It tells us how many protons there are,