Question

What relation do Ar and Ca have?



A) isotopes

B) isoelectronic

C) isobars

D) isotones

​

Answer 1

Argon and Calcium are Isobars.

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Answer 2

Answer:

Argon and calcium are isobars.

Explanation:

Why Ar and CA isobar:

Argon and calcium are isobars because both elements have the same atomic mass of 40 but distinct atomic numbers, argon having an atomic number of 18 and calcium having an atomic number of 20.

ISOBAR:

Atoms (nuclides) with the same number of nucleons from various chemical elements are referred to as isobars. In accordance with this, isobars have the same mass number but have different atomic numbers (or numbers of protons). The 40S, 40Cl, 40Ar, 40K and 40Ca are examples of a group of isobars. These nuclides all have 40 nucleons in their nuclei, but the protons and neutron content varies.

Alfred Walter Stewart proposed the name "isobars" for nuclides in 1918; it was initially called "isobares." Its root words are isos, which means "equal," and baros, which means "weight."

ATOMIC NUMBER:

The average mass of an element's atoms expressed in atomic mass units is the term "atomic mass" for an element (amu, also known as daltons, D). The atomic mass of an element is a weighted average of all of its isotopes, calculated by multiplying the mass of each isotope by its relative abundance.