Chapter 7 And 9 Test Review Flashcards Preview

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Flashcards in Chapter 7 And 9 Test Review Deck (28):
0

Ion

Positively (-electron) and negatively (+electron) atoms

1

Anion

Negatively charges ion. (gained electrons)

2

Cation

Positively charged ion ( lost electrons)

3

Octet rule

The tendency of atoms to gain or lose electrons to so as to acquire the stable electron structure of a noble gas (usually 8 valence electrons)

4

Valence electrons

Electrons in highest energy level of an atom
(the outermost energy level)

5

Isoelectronic

Having the same number of electrons as a noble gas. (2 or 8 valence electrons)

6

monatomic ion

An ion with one ion

Named by: element name (charge) ion

7

Naming a cation

Element name + ion

Ex sodium ion

8

Naming anion

Element name ending with ide + ion

Ex: chloride ion
Ex: oxide ion

9

Naming polyatomic ions

Mostly end in "ate" or "ite"

10

Define polyatomic ion

A group of atoms with a charge

Can be + and -

11

Define oxyanions

Polyatomic ions which have oxygen in them

12

Polyatomic ion ammonium

NH +
4

13

Polyatomic ion acetate

C3H2O-
2

14

Chlorate

ClO-
3

15

Hydroxide

OH-

16

Nitrate

NO-
3

17

Carbonate

CO-2
3

18

Sulfate

SO-2
4

19

Phosphate

PO -3
4

20

Naming an ion compound

Cation then anion(ide)or (ate)

21

Ionic compound formulas

Include charge and ( ) when required

22

How are hydrates different then ionic compounds?

A hydrate has H2O molecules between cations and anions

23

Ionic bond

The electrostatic force of attraction between ions of opposite charge

24

Electrostatic force

Attraction or repulsion between 2 objects that have charges

25

Ionic compounds (salts)

Electronically neutral charge with an equal number of + and - charges

26

5 properties of ionic compounds

1. Most are Crystalline solids at room temp. (Crystal Lattice)
2. High melting and boiling point (strong bonds)
3. Hard yet brittle (direct force over certain area)
4. As solid poor electric conduction (no moving charge for current)
5. Can conduct an electric current when melted or dissolved

27

Hydrates (h20 names)

1. Mono. 6. Hexa
2. Di. 7. Hepta
3. Tri. 8. Octa
4. Tetra. 9. Nona
5. Penta. 10. Deca