Which Species Has 18 Electrons

question 66

Multiple Choice

Which species has 18 electrons?

• A)"³⁹K"
• B)"³²S^2-"
• C)"³⁵Cl"
• D)"²⁷Al³⁺"
• E)"⁶⁴Cu²⁺"

---

Definitions:

Chunking

A cognitive strategy for making more efficient use of short-term memory by grouping related items together into a single unit or "chunk."

Short-Term Memories

The phase of memory where small amounts of information can be kept active for a brief period.

Decay Hypothesis

The theory that information is gradually forgotten over time due to the simple passage of time, assuming no attempt to retain it.

Rehearsal

The cognitive process of repeatedly practicing or reviewing information to aid in its retention in memory.