ATI TEAS 7
Chemistry
1. In a neutral atom, the number of electrons:
- A. Must be equal to the number of protons.
- B. Must be less than the number of protons.
- C. Must be greater than the number of neutrons.
- D. Can vary depending on the atom's temperature.
Correct answer: A
Rationale: Must be equal to the number of protons - For electrical neutrality, the positive charge of protons must be balanced by the negative charge of an equal number of electrons.
2. Choose the correct pronoun to complete the sentence: "Neither Michael nor Sarah ____ their homework finished yet."
- A. has
- B. have
- C. are having
- D. does have
Correct answer: B
Rationale: When referring to "neither" followed by two subjects, the verb agrees with the plural subject ("Sarah"). So, "have" is the correct answer.
3. If 3 nurses can care for 15 patients, how many nurses are needed for 25 patients?
- A. 4
- B. 5
- C. 6
- D. 7
Correct answer: B
Rationale: 3 nurses / 15 patients = x nurses / 25 patients. Solve for x.
4. What do isotopes of the same element have in common?
- A. Identical number of protons and neutrons.
- B. Identical chemical properties.
- C. Identical number of electrons.
- D. Identical mass number.
Correct answer: A
Rationale: Identical number of protons and neutrons - Isotopes have the same atomic number but different mass numbers due to varying neutron counts.
5. A solution is formed when:
- A. One substance dissolves in another
- B. Two or more substances react chemically
- C. A solid changes to a liquid
- D. None of the above
Correct answer: A
Rationale: One substance dissolves in another. A solution is a homogeneous mixture where one substance (solute) dissolves in another (solvent).
6. He asserts the importance of promoting a positive organizational culture in their unit. Which
- A. Proactive and caring with one another
- B. Competitive and perfectionist
- C. Powerful and oppositional
- D. Obedient and uncomplaining
Correct answer: A
Rationale: The correct answer is A: 'Proactive and caring with one another.' When promoting a positive organizational culture, it is essential to foster a supportive environment where individuals are proactive in their approach and demonstrate care towards one another. This type of culture encourages collaboration, open communication, and empathy among team members, leading to higher levels of job satisfaction and overall performance. Being competitive and perfectionist (option B) can create a stressful and unhealthy work environment, while being powerful and oppositional (option C) or obedient and uncomplaining (option D) can stifle creativity and innovation. Therefore, the most suitable traits for promoting a positive organizational culture are being proactive and caring with one another.
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