How Many H^- Ions Are Around Each Na⁺ Ion in NaH,which

question 64

Multiple Choice

How many H^- ions are around each Na⁺ ion in NaH,which has a cubic unit cell with H^- ions on each corner and each face?

• A)1
• B)4
• C)6
• D)8

---

Definitions:

Ideal Standards

Standards set based on the best possible conditions with no allowance for inefficiencies, used for benchmarking and goal-setting.

Price Variance

The difference between the actual price paid for a good or service and its expected price, often used in budgeting and cost control.

Quantity Variance

The difference between the actual quantity of materials or inputs used in production and the standard expected quantity, impacting costs.

Total Cost Variance

The difference between the budgeted or standard cost of an activity and its actual cost.