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Flashcards in Periodic Tabke Deck (13):
1

Factors affection ionisation energy

Nuclear charge
Atomic radius
Shielding

2

First ionisation energy

The energy needed to remove 1 mole of electrons from 1 mole of gaseous atoms

3

What happens as you move across periods

The ionisation energies are increased as there are more protons so pull towards the nucleus reducing the atomic radius

4

What happens as you descend the group

Ionisation energy decreases due to extra shells

5

Allotrope

Different forms of the same element in same state
Eg carbon- diamond graphite graphene

6

Metallic bonding

Metal cations electrostatically attracted to the delocalised negative electron. From lattice closely packed cations in sea of delocalised electrons

7

Simple molecular structure

Contain on a few atoms
Have covalent bonds between atoms
Strength of induced dipole dipole between molecules = how strong

8

Group 2 metals and water

From metal hydroxide and hydrogen

9

Group 2 and acid

Metal chloride and hydrogen

10

Silver nitrate Test for Cl

White pot
Dissolved in dilute NH3

11

Silver nitrate for Bromide

Cream ppt
Dissolves in conc. NH3

12

Silver nitrate Test iodide

Yellow pot
Insoluble in conc NH3

13

Sulfate Test

Add dilute HCl followed by BaCl2, if white ppt formed then sulfate