Question

Write any two differences between isotopes and isobars.
ii) Write any three uses of isotopes.
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Answer 1

Hey mate .....here's your answer....

Isotopes:

◆Istopes are the atoms of same element with same atomic number but different mass number.

Example: 17 Cl 35 , 17 Cl 37

◆Number of protons is same.

Isobars:

◆ Isobars are the atoms of different element with same mass number but different atomic number.

Example: 18 Ar 40 , 20 Ca 49

◆ Number of protons is different.

Uses of Isotopes:

◆Iron - 59 isotope is used in the treatment of goitre.

◆ Cobalt - 60 isotope is used in the treatment of cancer.

◆Carbon - 11 isotope is used in brain scan.

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Answer 2

Answer:

ISOTOPES

1 they have same atomic number but different mass number.

2 they have different physical properties

3 they have same chemical properties because the atomic number is same in isotopes.

4 they have same electronic configuration

5 the number of protons are less than the number of neutrons present in an isotope.

Ex_Hydrogen

ISOBAR

1 they have different physical properties.

2 they have different electronic configuration.

3 they have different number of protons.

4 they have different number of electrons for different elements.

5 Isobars are different elements having same atomic number.

Ex Argon (Ar) and Calcium (Ca) both have 40 as their mass number

Explanation: