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:

Variance

A measure of the dispersion or spread of a set of data points around their mean value; in finance, it's often used to measure volatility.

Portfolio Variance

A measure of the dispersion of returns of a portfolio's assets, indicating the degree of investment risk.

Portfolio Standard Deviation

A measure of the dispersion of returns within an investment portfolio, representing the risk associated with the portfolio's returns.

Portfolio Variance

A measure of the dispersion of returns of a portfolio, representing the risk associated with the portfolio.