Which Isotope, When Bombarded with Nitrogen-15, Yields the Artificial Isotope

question 115

Multiple Choice

Which isotope, when bombarded with nitrogen-15, yields the artificial isotope dubnium-260 plus 4 neutrons

• A) californium-245
• B) thorium-257
• C) nobelium-245
• D) californium-249
• E) dubnium-249

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Definitions:

Coordinate Covalent

A type of chemical bond where both electrons come from the same atom, typically seen in complex ions or molecules where a metal atom is bonded to one or more ligands.

Alkaline Earth Elements

A group of elements in the periodic table comprising beryllium, magnesium, calcium, strontium, barium, and radium, characterized by their two valence electrons.

Transition Metals

Elements found in the central block of the periodic table, characterized by their ability to form variable oxidation states and to create colored compounds.

Covalent Bond

A type of chemical bond where two atoms share one or more pairs of valence electrons, creating a stable balance of attractive and repulsive forces between atoms.