Advertisements
Advertisements
प्रश्न
State whether the following statement is true or false :
Radioactive isotope of iodine is used for making the medicine called tincture iodine.
उत्तर
The given statement is false.
The true statement is, iodine-131, the radioactive isotope of iodine is used as a tracer to determine the manner and rate of iodine intake by the thyroid gland in our body.
APPEARS IN
संबंधित प्रश्न
Isotopes of an element have ______.
Fill in the blanks of the following statement :
An atom of an element has 11 protons, 11 electrons and 12 neutrons. The atomic mass of the atom is ___________.
Which radioactive isotope is used to determine the activity of thyroid gland?
What is the reason for the slightly different physical properties of all the isotopes of an element ?
Which of the following pairs are isotopes ? Give reasons for your choice :
(i) `""_26^58"A"`, `""_28^58"B"` or (ii) `""_35^79"X"`, `""_35^80"Y"`
Three different atoms of oxygen are represented as :
`""_8^16"O"`, `""_8^17"O"`, `""_8^16"O"`
(i) What do the subscripts (lower figures) and superscripts (upper figures) represent ?
(ii) What factor is responsible for the change in the superscripts 16, 17 and 18, though the element is the same ?
(iii) What is the usual name for such atoms of an element ?
(iv) Give the nuclear composition of `""_8^16"O"`.
The composition of two atomic particles is given below :
| X | Y | |
| Protons : | 8 | 8 |
| Neutrons : | 8 | 9 |
| Electrons : | 8 | 8 |
(i) What is the mass number of X ?
(ii) What is the mass number of Y ?
(iii) What is the relation between X and Y ?
(iv) Which element/elements do they represent ?
Name or state the following.
The three isotopes of hydrogen.
In two isotopic species, a number of protons is the same but the number of ______ is different.
Distinguish isotopes from isobar
