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Flashcards in Chemistry Structure And Bonding Deck (16):
1

Ionic bonding is between?

Metal ( group 1 or 2 )
Non metal ( group 6 or 7 )

2

How do you draw a dot and cross diagram of ionic bonding?

Atom that electron has been taken from in brackets with the ➕ charge on the outside
Atom that has gained the electron has outer shell drawn showing 7 of the own electron plus the other electron in which is the other shape. This is in brackets and the ➖ charge is on the outside of the brackets

3

Anions are positive or negative?

Negative

4

Cations are positive or negative?

Positive

5

what structure does an ionic compound have?

Giant ionic lattice

6

What is the melting point of an ionic compound? Why?

Very high melting point
A large amount of energy is required to overcome the string electrostatic attractions And separate the ions

7

What is the strength of an ionic compound? Why?

Very brittle
String ionic bond held together in a giant ionic lattice

8

Electrical conductivity of an ionic compound? Why?

Do not conduct when solid because ions cannot move as they are in a fixed position
Conducts when molten or when in an aqueous solution because the ions are now mobile

9

What is the solubility of an ionic compound? Why?

Insoluble in non polar solution but soluble in water because water makes a permanent dipole

10

Charge in ammonium

NH4⃣^➕

11

Charge on hydroxide ion

OH^-

12

Charge on nitrate ion

NO3⃣^-

13

Charge on sulphate ion

SO4⃣^2-

14

Charge on carbonate ion

CO3⃣^2-

15

What structure do atoms held together by metallic bonding have?

Giant metallic lattice

16

What does this type of bonding hold together

Metals