Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

2. Cell Chemistry & Cell Components

Atoms- Smallest Unit of Matter

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Atoms- Smallest Unit of Matter

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0:38 minutes

Problem 1

Textbook Question

Fill in the blanks in this concept map to help you tie together the key concepts concerning elements, atoms, and molecules.

Verified step by step guidance

Identify the positively charged particles in an atom, which are protons, and fill in (a) with 'protons'.

Identify the neutral particles in an atom, which are neutrons, and fill in (b) with 'neutrons'.

Identify the negatively charged particles in an atom, which are electrons, and fill in (c) with 'electrons'.

Determine what number may differ in neutral atoms, which is the number of neutrons, and fill in (d) with 'neutrons'.

Identify the type of bond formed by unequal sharing of electrons, which is a polar covalent bond, and fill in (e) with 'polar covalent bonds'.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Atoms

Atoms are the fundamental building blocks of matter, consisting of protons, neutrons, and electrons. The atomic number, which is the number of protons in the nucleus, defines each element. Atoms can be positively charged (cations), negatively charged (anions), or neutral, depending on the balance of protons and electrons.

Chemical Bonds

Chemical bonds are the forces that hold atoms together in molecules. They can be formed through the transfer of electrons (ionic bonds) or the sharing of electrons (covalent bonds). The nature of these bonds influences the properties of the resulting compounds, such as polarity and reactivity.

Ionic and Covalent Bonds

Ionic bonds occur when electrons are transferred from one atom to another, resulting in the formation of charged ions that attract each other. Covalent bonds involve the sharing of electrons between atoms, which can be equal (nonpolar covalent bonds) or unequal (polar covalent bonds), affecting the molecule's polarity and interactions with other substances.