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Bio 1201 Chapter 2 – LiCata | 2025/2026 | Exam Questions and Correct Answers | Updated Q&A Guide

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This document is a comprehensive and updated study guide for Chapter 2 of the Bio 1201 course by LiCata for the 2025/2026 academic year. It features 100% correct answers to key questions about atomic structure, chemical bonds, electronegativity, isotopes, ions, and types of chemical interactions. Core concepts such as covalent vs. ionic bonds, hydrogen bonding, van der Waals forces, hydrophobic interactions, and chemical equilibrium are explained clearly in a Q&A format, making it ideal for test preparation or review. Keywords: protons neutrons electrons valence electrons chemical behavior carbon 14 radioactive isotopes covalent bonds polar vs nonpolar electronegativity ionic bonds hydrogen bonding van der Waals interactions steric fit hydrophobic interactions chemical reactions chemical equilibrium Chapter 2 biology test prep

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Uploaded on: January 17, 2026
Number of pages: 8
Written in: 2025/2026
Type: Exam (elaborations)
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Bio 1201 Chapter 2 LiCata 2025/2026
Exam Questions and Correct Answers |
New Update

What charge do protons have? - 🧠 ANSWER ✔✔positive

What charge do neutrons have? - 🧠 ANSWER ✔✔no charge

What do protons determine? - 🧠 ANSWER ✔✔element

What do neutrons determine? - 🧠 ANSWER ✔✔isotope

What charge do electrons have? - 🧠 ANSWER ✔✔negative

What do electrons form? - 🧠 ANSWER ✔✔negative cloud

What do electrons determine? - 🧠 ANSWER ✔✔chemical behavior

, What are the 4 main organic elements that are 97% of elements in living

systems? - 🧠 ANSWER ✔✔oxygen, carbon, hydrogen, nitrogen

All atoms of an element have the same number of _____ - 🧠 ANSWER

✔✔protons

____ are two atoms of an element that differ in number of neutrons - 🧠

ANSWER ✔✔isotopes

_____ decay spontaneously, giving off particles and energy - 🧠 ANSWER

✔✔Radioactive isotopes

What are some applications of radioactive isotopes in biological research? -

🧠 ANSWER ✔✔dating fossils

tracing atoms through metabolic processes

diagnosing medical disorders

How do you change the element? - 🧠 ANSWER ✔✔change the number of

protons

What is the most common radioactive element? - 🧠 ANSWER ✔✔carbon

14

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Bio 1201 Chapter 2 – LiCata | 2025/2026 | Exam Questions and Correct Answers | Updated Q&A Guide

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