A Doubly Charged Ion (Charge 2e)with Velocity 6

question 26

Multiple Choice

A doubly charged ion (charge 2e) with velocity 6.9 × 10⁶ m/s moves in a circular path of diameter 60.0 cm in a magnetic field of 0.80 T in a mass spectrometer.What is the mass of this ion? (e = 1.60 × 10^-19C)

• A) 11 × 10^-27 kg
• B) 6.7 × 10^-27 kg
• C) 4.5 × 10^-27 kg
• D) 3.3 × 10^-27 kg
• E) 8.2 × 10-^-27 kg

---

Definitions:

Terminal Decline

The rapid decline in cognitive and physical health that occurs shortly before death.

Mental Ability

The capacity to perform cognitive tasks, think critically, and solve problems.

Retirement

The phase of life following an individual's withdrawal from the workforce, typically due to reaching a certain age or completing a career.

Fluid Intelligence

The ability to solve new problems, use logic in new situations, and identify patterns.