Inside the atom

Question 1

Structure

Answer 1

• Atom contains: Positive nucleus (protons & neutrons), electrons
• Nucleon = proton / neutron in nucleus

Question 2

Isotopes

Answer 2

-Isotopes, atoms with same number protons, diff number neutrons

Isotope notation:
A (Nucleon number)
X (Chemical symbol)
Z (Mass number)

Question 3

Specific charge

Answer 3

• Charge over mass (Q/M)
• Calculated if charge & mass of particle is known
• Electron charge: -1.60 x 10^-19 C, Mass: 9.11 X 10^-31 KG
• Proton charge: +1.60 x 10^-19 C, Mass: 1.67 x 10^-27