Find the Solution for X of the Equation

question 31

Multiple Choice

Find the solution for x of the equation . ​

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Definitions:

Helium (He)

A colorless, odorless, tasteless, non-toxic, inert monatomic gas with the atomic number 2, making it the second lightest and second most abundant element in the observable universe.

Lewis Dot Structure

A representation of the valence electrons around atoms, indicating bonds and lone pairs in molecules.

Calcium (Ca)

A soft gray alkaline earth metal, represented by the symbol Ca, essential for living organisms, particularly in cell physiology and bone formation.

Lewis Dot Structure

A diagram that shows the bonding between atoms of a molecule and the lone pairs of electrons that may exist.