Evaluate

question 20

Essay

Evaluate .

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Definitions:

Electron Orbitals

Regions in an atom where there is a high probability of finding electrons, with each orbital having a distinctive shape and energy level.

Covalent Compound

A chemical compound formed by the sharing of pairs of electrons between atoms.

Dichlorodifluoromethane

A chemical compound once widely used as a refrigerant and propellant but now recognized for its ozone-depleting properties.

Strontonium

A chemical element with the symbol Sr, known for its use in fireworks and as a component in certain alloys.