Chemical Bonding Flashcards Preview

Science Module 4 > Chemical Bonding > Flashcards

Flashcards in Chemical Bonding Deck (27):
1

Outermost electrons

Valence electrons

2

attraction between atoms

chemical bonds

3

the theory that describes elementary aspects of chemical bonding

Lewis Theory

4

net transfer between atoms (connect electrostatically)

ionic bonds

5

shared electrons bond

covalent bonds

6

unequal sharing and large difference between electronegativity

polar bonds

7

symmetric arrangement of atoms and zero dipole movement

nonpolar bonds

8

all atoms are configured in eights

Octet rule

9

Exceptions to the Octet rule

Duet rule (He), incomplete octets (BF2), Odd-eletron species (NO), Expanded octets (PCl5)

10

What are odd electron species/ radicals?

involve atoms with unpaired valence electrons

11

What are expanded octets?

more than eight valence electrons

12

What do you use to represent the valence electrons of an atom?

Lewis Dot Symbols

13

What do you use to represent the valence electrons of a formula?

Lewis Structures

14

What are ionic compounds?

compounds made up of positive and negative ions held by an ionic bond

15

How do you write ionic formulas?

Criss cross method

16

What are molecular compounds?

Compounds made up of discrete molecules held by covalent bonds

17

Polarity of a molecular compound is affected by what?

Electronegativity difference and molecular geometry

18

Between molecular and empirical formulas, which is supposed to be in the smallest whole number ratio?

Empirical

19

Can two compounds have the same empirical formula?

yes

20

Ionic compounds are compounds between ____ and ____

metals and nonmetals

21

compounds between two nonmetals are called?

Molecular compounds

22

Indicators of an ionic compound

1) unmodified metal + nonmetal-ide
2) metal-our or -ic + nonmetal-ide
3) unmodified metal (roman numerals) + nonmetal-ide

23

Indicators of molecular compound

prefixes

24

What are ternary compounds?

composed of more than two elements

25

What are oxoanions?

Composed of nonmetal and oxygen

26

Indicators of Binary acids

prefix of hyrdro + -ic followed by acid

27

What are ternary acids?

Composed of hydrogen and oxoanion, also called Oxoacids