IB Chemistry Topic 3
| Front | why does electronegativity decrease moving down a group |
| Back | The nuclear charge increases as more protons are being added to the nucleusHowever, each element has an extra filled electron shell, which increases shieldingThe addition of the extra shells increases the distance between the nucleus and the outer electrons resulting in larger atomic radiiOverall, there is decrease in attraction between the nucleus and outer bonding electrons decreasing effective nuclear charge |
| Front | how is first ionisation energy affected moving down a group |
| Back | it decreases down a group |
| Front | what is the state of bromine at room temp |
| Back | liquid |