3. Bonding Flashcards Preview

AQA A Level Physical Chemistry > 3. Bonding > Flashcards

Flashcards in 3. Bonding Deck (244)
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1

How do ions in ionic compounds achieve stability?

Their electron configuration is the same as a noble gas after they have gained/lost an electron

2

What is an ionic bond?

The electrostatic force of attraction between the two oppositely charged ions

3

Will ionic bonds exist in isolation?

No, they will always form part of a giant ionic lattice

4

When two ions are more charged, what will this mean for the forces of attraction between them?

The more charged the ions are, the greater force of attraction between them

5

Are ionic compounds ever molecules?

No

6

What does the formula 'NaCl' represent?

That there is a one to one ratio of sodium to chloride ions

7

What is the formula for an ammonium ion?

NH4+

8

What is the formula for a chlorate ion?

ClO3-

9

What is the formula for a cyanide ion?

CN-

10

What is the formula for a carbonate ion?

CO3 2-

11

What is the formula for a chromate ion?

CrO4 2-

12

What is the formula for a dichromate ion?

Cr2O7 2-

13

What is the formula for a hydrogen carbonate ion?

HCO3 -

14

What is the formula for a hydrogen phosphate ion?

HPO4 2-

15

What is the formula for a hydrogen sulfate ion?

HSO4 -

16

What is the formula for a hydroxide ion?

OH-

17

What is the formula for a nitrate ion?

NO3 -

18

What is the formula for a nitrite ion?

NO2-

19

What is the formula for a manganate ion?

MnO4-

20

What is the formula for a peroxide ion?

O2 2-

21

What is the formula for a phosphate ion?

PO4 3-

22

What is the formula for a sulfate ion?

SO4 2-

23

What is the formula for a sulfite ion?

SO3 2-

24

What is the formula for a thiosulfate ion?

S2O3 2-

25

What is a covalent bond?

A shared pair of electrons, where each electron come from a different atom

26

What happens when a pair of electrons is shared?

A single bond is formed

27

How is a double or triple covalent bond formed?

If two or three pairs of electrons are shared

28

What type of covalent bond does a H2 molecule have?

Single covalent, H-H

29

What type of covalent bond does an O2 molecule have?

Double covalent, O=O

30

What type of covalent bond does an N2 molecule have?

Triple covalent, N≡N