The atomic number of atoms of two elements are 18 and 20 respectively and their mass number are 40. mention the term that can be given to relate such pairs of atoms. will they have the same chemical properties? justify your answer

Hi,

Element with atomic number 18 and 20 are Argon and potassium respectively.

Term used to relate them is isobar.

Isobar compounds have same mass number but different atomic number and chemical properties depend upon number of electrons so isobars have different chemical properties.

Regards

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THE TERMS ARE ISOBARS. WE KNOW THAT ARGON AND POTASSIUM ARE THE ATOMS OF DIFFERENT ELEMENTS. BUT HAVE SAME ATOMIC MASS AND DIFFERENT ATOMIC NO.
ARGON AND POTASSIUM HAVE DIFFERENT ATOMIC NUMBERS OF 18 & 20 BUT SAME ATOMIC MASS OF 40u.
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SINCE THEY ARE ATOMS OF DIFFERENT ELEMENTS, THEREFORE, THE HAVE DIFFERENT CHEMICAL PROPERTIES
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