Nursing Elites

1. When a die is rolled, what is the probability of rolling an odd number?

• A. 16.67%
• B. 33.33%
• C. 75%
• D. 50%

Correct answer: D

Rationale: When a die is rolled, there are 3 odd numbers (1, 3, 5) out of a total of 6 possible outcomes. The probability of rolling an odd number is calculated by dividing the number of favorable outcomes (3) by the total number of outcomes (6), resulting in a probability of 3/6 or 50%. Therefore, the correct answer is D. Choices A, B, and C are incorrect because they do not reflect the correct probability calculation for rolling an odd number on a standard six-sided die.

2. Select the phrase that will make the following sentence grammatically correct. Before I had finished supper, James ___________.

• A. is texting me on my cell phone
• B. had texted me on my cell phone
• C. texts me on my cell phone
• D. texting me on my cell phone

Correct answer: B

Rationale: The sentence starts with 'Before I had finished supper,' indicating that the action of James texting you on your cell phone had occurred before the completion of another past action (finishing supper). The past perfect tense 'had texted' is used to express an action that happened before another action in the past, making the sentence grammatically correct. Choice A is incorrect because it uses the present continuous tense, which is not suitable for indicating an action that occurred before finishing supper. Choice C is incorrect as it uses the simple present tense, which does not convey the sequence of events correctly. Choice D is incorrect as it presents the present continuous tense, which is not appropriate for the context of the sentence.

3. What is the meaning of the word disparate as used in the first paragraph?

• A. Unusual
• B. Diverse
• C. Trivial
• D. Damaging

Correct answer: B

Rationale: "Disparate" means diverse or different. The passage discusses how Lyme disease has various symptoms that mimic other diseases, making it difficult to diagnose.

4. What number represents the number of protons an element has?

• A. Atomic mass
• B. Mass number
• C. Atomic number
• D. Neutron number

Correct answer: C

Rationale: The correct answer is C, atomic number. The atomic number corresponds to the number of protons in an element. This number is unique to each element and determines its placement on the periodic table. It is equal to the number of protons found in the nucleus of an atom of that element. Choice A, atomic mass, represents the average mass of an element's isotopes. Choice B, mass number, is the sum of protons and neutrons in an atom. Choice D, neutron number, specifically refers to the count of neutrons in an atom and not protons.

5. What distinguishes one allotrope from another?

• A. Arrangement of atoms
• B. Gram atomic mass
• C. Physical state
• D. Stability

Correct answer: A

Rationale: Allotropes are different forms of the same element that exist in the same physical state but have different structures. The arrangement of atoms is what distinguishes one allotrope from another, determining their unique properties and characteristics. Gram atomic mass (Choice B) is a constant value for a specific element and does not change between different allotropes. Physical state (Choice C) refers to whether a substance is a solid, liquid, or gas, which can be the same for different allotropes of an element. Stability (Choice D) can vary between different allotropes, but it is not what always differentiates one allotrope from another. Therefore, the correct answer is the arrangement of atoms, as it is the key factor that varies across different allotropes.

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