Flashcards
Trends in the periodic table
Flashcards do conjunto (7)
- 11st Ionisation energy (groups)X(g) ---> X+(g) + e-
Going down a group decreases as the outer electron is further away and is shielded by inner shells - 2Atomic radius (groups)Atomic radius increases down the group as an extra inner shell of electrons is added per period the more electron shells the bigger the radius
- 3Melting & Boiling points (group 1 & 2)Decrease down the group
Distance between nucleaus and electrons increases so weaker bonds less energy required to break them - 4Melting & Boiling points (Halogens & Noble gases)The molecule gets bigger and the intermolecular forces get stronger and more energy is required to overcome them
- 5Electrical conductivityIncreases as metallic character increases
- 6From left to right across a period1st ionisation energy increases
atomic radius decreases
electronegativity increases - 7Down a group1st ionisation energy decreases
atomic radius increases
electronegativity decreases
increase in metallic character
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- Descrição
- Chemistry FlashCards sobre Trends in the periodic table, criado por Holly Bamford em 23-10-2015.
- Criado por
- Holly Bamford · out 2015
- Atualizado
- 21 set 2016
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