Atomic Structure

Proton Neutron Electron

Proton Neutron Electron

Nuclides

Proton Neutron

Nucleons

Electron mass

9.107 × 10^-31 Kg

Electron charge

-1.6 × 10^-19 C

Proton mass (1u)

1.67 × 10^-27 Kg

Specific charge

Ratio of charge to mass

Isotopes

Same Z diff A

Isobars

Same A diff Z

Isotones

A-Z (same neutron)

Isodiaphers

Proton-neutron

Isoelectronic

e same

Isosters

e same No. atom same

Antiparticle of e

Positrone

Force of attraction on e by nucleus is directly propotional to

Z³/n⁴

Plank’s constant

6.626×10⁻³⁴ J-hrz⁻¹

No. Of charged particles deflected is

1. 1 / (ke)²

2. Z²

3. 1 / (sin(/2))⁴

1/λ (wavenumber=)

RZ² [1/n1² - 1/n2²]

E (no. of proton=)

nhc / λ