Isotope

Isotopic Mass

amu

% Abundance

T_1/2

T_1/2

Units

Mass Excess

KeV

Binding Energy

Per Nucleon

KeV

Decay

Mode

Branching

Ratio

⁸¹Nb

80.9490 (16)

<44

ns

-47,500 (1500)

8,260 (18)

p ?

⁸²Nb

81.94313 (32)

51

ms

-52,970 (300)

8,326 (4)

B+

100

⁸³Nb

82.93671 (34)

4.1

s

-58,960 (310)

8,395 (3.8)

B+

100

⁸⁴Nb

83.93357 (32)

9.8

s

-61,880 (300)

8,426 (4)

B+

100

⁸⁵Nb

84.92791 (24)

20.9

s

-67,150 (220)

8,484 (2.6)

B+

100

⁸⁶Nb

85.925038 (92)

88

s

-69,826 (85)

8,510.3 (9.9)

B+

100

⁸⁷Nb

86.920361 (65)

3.75

m

-74,183 (61)

8,555.3 (7)

B+

100

⁸⁸Nb

87.91833 (11)

14.5

m

-76,070 (100)

8,571 (1.1)

B+

100

⁸⁹Nb

88.913418 (29)

2.03

h

-80,650 (27)

8,617.1 (3)

B+

100

⁹⁰Nb

89.9112648 (50)

14.6

h

-82,656.3 (4.6)

8,633.32 (5.2)

B+

100

⁹¹Nb

90.9069962 (41)

680

y

-86,632.4 (3.8)

8,670.84 (4.1)

EC~100

⁹²Nb

91.9071939 (30)

34.7

My

-86,448.3 (2.8)

8,662.32 (3.1)

B+~100

⁹³Nb

92.9063781 (26)

100

stable

-87,208.3 (2.4)

8,664.14 (2.6)

⁹⁴Nb

93.9072839 (26)

20.3

ky

-86,364.5 (2.4)

8,648.85 (2.6)

B-

100

⁹⁵Nb

94.9068358 (21)

34.991

d

-86,781.9 (2)

8,647.17 (2.1)

B-

100

⁹⁶Nb

95.9081006 (40)

23.35

h

-85,603.7 (3.7)

8,628.90 (3.9)

B-

100

⁹⁷Nb

96.9080986 (27)

72.1

m

-85,605.6 (2.6)

8,623.17 (2.6)

B-

100

⁹⁸Nb

97.9103284 (61)

2.86

s

-83,528.5 (5.7)

8,596.34 (5.8)

B-

100

⁹⁹Nb

98.911618 (14)

15

s

-82,327 (13)

8,578.9 (1.4)

B-

100

¹⁰⁰Nb

99.914182 (28)

1.5

s

-79,939 (26)

8,549.9 (2.6)

B-

100

¹⁰¹Nb

100.915252 (20)

7.1

s

-78,942 (19)

8,535.3 (1.9)

B-

100

¹⁰²Nb

101.918038 (44)

1.3

s

-76,347 (41)

8,505.3 (4)

B-

100

¹⁰³Nb

102.919144 (73)

1.5

s

-75,317 (68)

8,491.1 (6.6)

B-

100

¹⁰⁴Nb

103.92246 (11)

4.9

s

-72,220 (100)

8,457 (1)

B-

100

¹⁰⁵Nb

104.92394 (11)

2.95

s

-70,850 (100)

8,440.6 (9.5)

B-

100

¹⁰⁶Nb

105.92797 (21)

920

ms

-67,100 (200)

8,402 (2)

B-

100

¹⁰⁷Nb

106.93031 (43)

300

ms

-64,920 (400)

8,378 (4)

B-

100

¹⁰⁸Nb

107.93484 (32)

193

ms

-60,700 (300)

8,336 (3)

B-

100

¹⁰⁹Nb

108.93763 (54)

190

ms

-58,100 (500)

8,310 (5)

B-

100

¹¹⁰Nb

109.94244 (54)

170

ms

-53,620 (500)

8,267 (5)

B-

100

¹¹¹Nb

110.94565 (54)

80

ms

-50,630 (500)

8,238 (5)

B- ?

¹¹²Nb

111.95083 (75)

60

ms

-45,800 (700)

8,194 (6)

B- ?

¹¹³Nb

112.95470 (86)

30

ms

-42,200 (800)

8,161 (7)

B- ?

^84mNb

83.93357 (32)

103

ns

-61,880 (300)

8,426 (4)

IT

100

^85mNb

84.92791 (24)

12

s

-67,150 (220)

8,484 (2.6)

B+

100

^86mNb

85.925038 (92)

56

s

-69,826 (85)

8,510.3 (9.9)

B+

100

^87mNb

86.920361 (65)

2.6

m

-74,183 (61)

8,555.3 (7)

B+

100

^88mNb

87.91833 (11)

7.8

m

-76,070 (100)

8,571 (1.1)

B+

100

^89mNb

88.913418 (29)

1.1

h

-80,650 (27)

8,617.1 (3)

B+

100

^90mNb

89.9112648 (50)

63

us

-82,656.3 (4.6)

8,633.32 (5.2)

IT

100

^91mNb

90.9069962 (41)

60.86

d

-86,632.4 (3.8)

8,670.84 (4.1)

IT

96.6 5

^92mNb

91.9071939 (30)

10.15

d

-86,448.3 (2.8)

8,662.32 (3.1)

B+

100

^93mNb

92.9063781 (26)

16.13

y

-87,208.3 (2.4)

8,664.14 (2.6)

IT

100

^94mNb

93.9072839 (26)

6.263

m

-86,364.5 (2.4)

8,648.85 (2.6)

IT

99.50 6

^95mNb

94.9068358 (21)

3.61

d

-86,781.9 (2)

8,647.17 (2.1)

IT

94.4 6

^97mNb

96.9080986 (27)

52.7

s

-85,605.6 (2.6)

8,623.17 (2.6)

IT

100

^98mNb

97.9103284 (61)

51.3

m

-83,528.5 (5.7)

8,596.34 (5.8)

B-~100

^99mNb

98.911618 (14)

2.6

m

-82,327 (13)

8,578.9 (1.4)

B-

?

^100mNb

99.914182 (28)

2.99

s

-79,939 (26)

8,549.9 (2.6)

B-

100

^102mNb

101.918038 (44)

4.3

s

-76,347 (41)

8,505.3 (4)

B-

100

^104mNb

103.92246 (11)

940

ms

-72,220 (100)

8,457 (1)

B-

100

^90m1Nb

89.9112648 (50)

18.81

s

-82,656.3 (4.6)

8,633.32 (5.2)

IT

100

^91m1Nb

90.9069962 (41)

3.76

us

-86,632.4 (3.8)

8,670.84 (4.1)

IT

100

^92m1Nb

91.9071939 (30)

5.9

us

-86,448.3 (2.8)

8,662.32 (3.1)

IT

100

^90m2Nb

89.9112648 (50)

<1

us

-82,656.3 (4.6)

8,633.32 (5.2)

IT

100

^92m2Nb

91.9071939 (30)

167

ns

-86,448.3 (2.8)

8,662.32 (3.1)

IT

100

^90m3Nb

89.9112648 (50)

6.19

ms

-82,656.3 (4.6)

8,633.32 (5.2)

IT

100

^90m4Nb

89.9112648 (50)

472

ns

-82,656.3 (4.6)

8,633.32 (5.2)

IT

100