Isotopes

Question 1

Elements with the same atomic number but a different mass number

Answer 1

Isotopes

Question 2

Hydrogen’s three most stable isotopic forms

Answer 2

Protium, Deuterium, Tritium

Hydrogen – 1, Hydrogen – 2, Hydrogen – 3

Question 3

Carbon’s three isotopic forms

Answer 3

Carbon-12, Carbon-13, Carbon-14

Question 4

Which among the Carbon isotopes is the most stable?

Answer 4

Carbon-12

Question 5

Which among the Carbon isotopes is the most unstable?

Answer 5

Carbon-14

Question 6

Isotopic forms of Oxygen

Answer 6

Oxygen -16, Oxygen - 17, Oxygen -18

Question 7

Isotopic forms of Uranium

Answer 7

U-235
U-238

Question 8

Isotopic forms of Chlorine

Answer 8

Chlorine – 35
Chlorine – 37

Question 9

Isotopic forms of Fluorine

Answer 9

Fluorine 17, Fluorine 18, Fluorine 19

Question 10

How many discovered isotopes are there?

Answer 10

Approximately 275 different isotopes of 81 stable elements

Question 11

Used for Carbon dating

Answer 11

Carbon - 14

Question 12

Used in nuclear reactors

Answer 12

U - 235

Question 13

Used for determining the presence of a tumour

Answer 13

Arsenic-74

Question 14

Used for the detection of blood clots

Answer 14

Sodium-24

Question 15

Applied in cancer treatments

Answer 15

Cobalt-60

Question 16

Helps in the treatment of goitre

Answer 16

Iodine-131

Question 17

Elements which have the highest number of isotopes

Answer 17

Cs and Xe

Question 18

True or False?

Heavier isotopes of the same element react more slowly than lighter isotopes of the same element

Answer 18

True

Question 19

Twenty-six elements are there which have only one stable isotope which is called ____?

Answer 19

Monoisotopic

Question 20

A distinct kind of atom with a specific number of neutrons and protons. Can be uncategorized as, isotopes, isotones, and isobars.

Answer 20

Nuclide

Question 21

A nuclide with the same number of neutrons (N), but a different number of protons (Z)

Answer 21

Isotone

Question 22

A nuclide with the same mass number (A), but a different number of neutrons (N) and protons (Z)

Answer 22

Isobar

Question 23

Spontaneous breakdown of large nuclei into two smaller nuclei

Answer 23

Spontaneous fission

Question 24

Process of spiking a sample with a known quantity of one or more tracer isotopes in order to convert ratios measured by mass spec to moles in sample isotope, reference is most abundant isotope

Answer 24

Isotope dilution