Question

Mg2+, Na+, and F- all have the same electron configuration as Ne, and are described as being _____ with Ne and with each other.

A) Isomers
B) Isoelectronic
C) Isotopes
D) Isomers

Answer 1

Mg2+, Na+, and F- are described as being isoelectronic with Ne, which means they share the same electron configuration as the noble gas neon.

Step-by-step explanation:

Mg2+, Na+, and F− all have the same electron configuration as Ne, and are described as being isoelectronic with Ne and with each other. The term isoelectronic refers to atoms or ions that have the same number and configuration of electrons.

For example, the electron configuration of the sodium ion (Na+) is now the same as that of the noble gas neon (Ne): 1s22s22p6. Similarly, when magnesium becomes Mg2+ and fluorine becomes F−, they also achieve this electron configuration, making them isoelectronic with each other and with neon.