flashcards on atomic structure
| Front | FIRST IONISATION ENERGY ACROSS A PERIOD |
| Back | - general increase - atom size decreases across period due to more protons pulling the main shells in - all elements have similar shielding = no effect - all elements have outer electron to be removed in the same main shell, so atomic radius has no effect - HOWEVER, number of protons increases, so attraction between outer electron being removed and nucleus increases, so more energy required to remove it |
| Front | What does m/z mean on a mass spectra |
| Back | mass number / charge |
| Front | Give 2 reasons why the first ionisation energy of Neon is lower than the 3rd ionisation energy of Magnesium |
| Back | - Mg2+ has more protons than Ne- Mg2+ is smaller than Ne |