Question

which of the following models represents a positive ion?
a: 11 protons 10 electrons
b: 10 protons 10 electrons
c: 9 protons 10 electrons
d: 7 protons 10 electrons
select one:
a. a
b. b
c. c
d. d

Explanation:

Step1: Define positive ion condition

A positive ion has more protons (positive charge) than electrons (negative charge), so $\text{Number of Protons} > \text{Number of Electrons}$.

Step2: Analyze each option

• Option A: $11 > 10$, satisfies the condition.
• Option B: $10 = 10$, neutral atom, not an ion.
• Option C: $8 < 10$, negative ion.
• Option D: $7 < 10$, negative ion.

Answer:

a. A