Give the Number of Lone Pairs Around the Central Atom

question 1

Multiple Choice

Give the number of lone pairs around the central atom and the geometry of the ion SeO₄^2-.

• A)0 lone pairs, square planar
• B)0 lone pairs, tetrahedral
• C)1 lone pair, distorted tetrahedron (seesaw)
• D)1 lone pair, square pyramidal
• E)2 lone pairs, square planar

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Definitions:

Forward-Passing

A project management technique used in network analysis to determine the earliest start and finish times for each activity in a project plan.

Scheduling

The process of organizing, planning, and controlling workloads and resources to complete tasks efficiently and within set timeframes.

Organising

The process of arranging resources and tasks to achieve a specific goal or operation efficiently, often involving planning, coordinating, and controlling resources.

Critical Path

The sequence of stages determining the minimum time required for an operation, especially in project management, identifying the longest stretch of dependent tasks and establishing the shortest possible project duration.