The Central Xe Atom in the XeF₄ Molecule Has ________

question 8

Multiple Choice

The central Xe atom in the XeF₄ molecule has ________ unbonded electron pair(s) and ________ bonded electron pair(s) in its valence shell.

• A)1, 4
• B)2, 4
• C)4, 0
• D)4, 1
• E)4, 2

Identify the groups of elements that were missed or later added to the periodic table.

Familiarize with the origin of atomic symbols for elements and their etymological roots.

Discern between metals, metalloids, and non-metals based on their properties.

Understand the chemical compositions and formulas of various compounds.

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Definitions:

Glaucoma

A group of eye conditions resulting in optic nerve damage, often associated with increased pressure in the eye, leading to loss of vision if untreated.

Abbreviation

A shortened form of a word or phrase used to save space or time when writing or speaking.

Capsular Glaucoma

A form of glaucoma characterized by high intraocular pressure due to the malfunctioning of the drainage structures within the eye's capsular (outer layer).

Pseudoexfoliation

A condition characterized by the accumulation of fibrillary extracellular material in various organs and tissues of the body, including the eyes, which can lead to secondary glaucoma.