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Flashcards in Exam 1 Deck (72)
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1
Q

Radioactive

A

Atom that spontaneously undergoes a reaction of the atomic nucleus

2
Q

Isotope

A

Different form of the same element

3
Q

What is in the nucleus?

A

Protons and neutrons

4
Q

Microscopic representation

A

Atomic size

5
Q

Macroscopic representation

A

We can see it (ex. A car)

6
Q

Symbolic representation

A

Short hand (ex. Fe, C, H, Cl)

7
Q

What is different about an isotope?

A

Different number of neutrons (therefore different mass)

8
Q

Compounds

A

Consist of 2 or more elements

9
Q

Scientific law

A

Provides explanations; well supported by measurements and observation

10
Q

Theory

A

Explains phenomena and based on observation, experiment, and reason

11
Q

Hypothesis

A

Requires facts that can be tested

12
Q

Precision

A

Exactness

13
Q

Accuracy

A

How close to an actual value

14
Q

Significant figures

A

Communicate exactness; #of didgets in a value

15
Q

Orbitals

A

S, p, d, f

16
Q

What shape is the s orbital?

A

Sphere

17
Q

What shape is the p orbital?

A

Dumbbell

18
Q

Nuclear fission

A

Large atoms split into smaller ones

19
Q

Tera-

A

10^12

20
Q

Giga-

A

10^9

21
Q

Mega-

A

10^6

22
Q

Kilo-

A

10^3

23
Q

Deci-

A

10^-1

24
Q

Centi-

A

10^-2

25
Q

Milli-

A

10^-3

26
Q

Micro-

A

10^-6

27
Q

Nano-

A

10^-9

28
Q

Pico-

A

10^-12

29
Q

NH4

A

Ammonium (1+)

30
Q

Ag

A

Silver (1+)

31
Q

Zn

A

Zinc (2+)

32
Q

Copper (I)

A

Cu+

33
Q

Copper (II)

A

Cu2+

34
Q

iron(II)

A

Fe2+

35
Q

Iron (III)

A

Fe3+

36
Q

HO

A

Hydroxide (1-)

37
Q

CH3COO

A

Acetate (1-)

38
Q

NO3

A

Nitrate (1-)

39
Q

SO4

A

Sulfate (2-)

40
Q

SO3

A

Sulfite (2-)

41
Q

CO3

A

Carbonate (2-)

42
Q

PO4

A

Phosphate (3-)

43
Q

Molecules

A

Sharing electrons

44
Q

Ions

A

Atoms or groups of atoms that posses an electric charge

45
Q

Cations

A

Positive

46
Q

Anions

A

Negative

47
Q

ClO

A

Hypochlorite (1-)

48
Q

ClO2

A

Chlorite (1-)

49
Q

ClO4

A

Perchlorate (1-)

50
Q

Chemical bonds

A

Name given to attractive forces that hold atoms together in a compound

51
Q

Electronegativity

A

Ability to attract electrons

52
Q

Delta negative

A

Stronger electronegative

53
Q

Bond length

A

Distance from nucleus to nucleus

54
Q

Bond strength

A

Energy required to break a band ***always add energy

55
Q

Polar covalent

A

Very different (HF2)

56
Q

Ionic bond

A

Metal and nonmetal

57
Q

Covalent bond

A

2 non metals (very close)

58
Q

Tetrahedron

A

4 parts

59
Q

Trigonal pyramidal

A

3 parts

60
Q

Trigonal planar

A

3 parts

61
Q

Bent

A

2 parts

62
Q

Linear

A

2 parts

63
Q

Are multiple bonds longer or shorter?

A

Shorter but stronger

64
Q

Degree of linear

A

180

65
Q

Degree of bent

A

105

66
Q

Degree of trigonal planar

A

120

67
Q

Degree of trigonal pyramidal

A

107

68
Q

Degree of tetrahedron

A

109

69
Q

Octahedral

A

AX6 (90)

70
Q

> 1.9 electronegativ

A

Ionic

71
Q

.9-1.9 electronegative

A

Polar covalent

72
Q

0-.8 electronegative

A

Covalent