3.1.1 Periodicity Flashcards
1
Q
periodicity
A
the repeating pattern of properties of elements across different periods in the periodic table
2
Q
1st ionisation energy
A
the energy required to remove one mole of electrons from one mole of gaseous atoms
3
Q
factors influencing ionisation energy
A
nuclear charge
distance of electrons from nucleus
shielding effect
4
Q
standard answer points for ionisation energy
A
- trend in ionisation energy
- nuclear charge
- distance from nucleus
- shielding
- nuclear attraction
- how easy to remove electron?
- greater ionisation energy
5
Q
why does the ionisation energy increase when an electron is removed
A
the proton to electron ratio increases
