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Which of the following pairs are isotopes?
┬╣H and ┬▓H
┬╣тБ╢O and ┬╣тБ╢F
┬╣┬▓C and ┬╣тБ┤N
тБ┤тБ░Ca and тБ┤тБ░Ar
┬╣H and ┬▓H
Isotopes are atoms of the same element that have the same number of protons (atomic number) but different numbers of neutrons (mass number). Hydrogen-1 (Protium) and Hydrogen-2 (Deuterium) both contain one proton, identifying them as the same element, Hydrogen, despite having different masses.
Isotopes are atoms of the same element that have the same number of protons (atomic number) but different numbers of neutrons (mass number). Hydrogen-1 (Protium) and Hydrogen-2 (Deuterium) both contain one proton, identifying them as the same element, Hydrogen, despite having different masses.
In chemistry and atomic physics, the atomic number (Z) is defined as the number of protons in the nucleus, which serves as the fundamental identifier for an element in the Periodic Table.
Isotopes of an element exhibit nearly identical chemical properties because they have the same electronic configuration.
Physical properties, such as density and boiling point, may vary between isotopes due to differences in atomic mass.
Deuterium (2H) is often referred to as 'Heavy Hydrogen' and is crucial in the production of heavy water (D2O) used in nuclear reactors.
16O and 16F are isobars if mass numbers are equal but atomic numbers differ, or simply distinct elements.
12C and 14N have different atomic numbers (6 and 7 respectively), meaning they are different elements entirely.
40Ca and 40Ar are isobars, as they share the same mass number (40) but belong to different elements with different atomic numbers.
The identity of an atom is dictated strictly by its proton count, not its neutron count.
A is correct тАФ 1H and 2H are isotopes because they share the same atomic number but possess different mass numbers.
When studying radioactivity, remember that Carbon-14 is an unstable radioactive isotope used in radiocarbon dating to determine the age of organic archaeological artifacts.
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