Describe the charge, mass, and relative location of electrons, protons, and neutrons.
Compare and contrast the terms atoms and elements.
Identify the four major elements found in the human body.
The Correct Answer and Explanation is :
Charge, Mass, and Location of Subatomic Particles
- Electrons: Have a negative charge (-1), nearly zero mass (1/1836 of a proton’s mass), and are located in the electron cloud surrounding the nucleus.
- Protons: Have a positive charge (+1), a mass of 1 atomic mass unit (amu), and are located in the nucleus of the atom.
- Neutrons: Have no charge (neutral), a mass of 1 amu, and are also found in the nucleus.
Comparison of Atoms and Elements
- Atoms: The smallest units of matter that retain the properties of an element. Each atom consists of protons, neutrons, and electrons.
- Elements: Pure substances consisting of only one type of atom. They are identified by the number of protons in the nucleus.
Comparison:
✅ Both are fundamental to chemistry.
✅ Atoms make up elements.
✅ Elements contain only one kind of atom.
❌ Atoms can vary in the number of neutrons (isotopes), but the element remains the same.
Four Major Elements in the Human Body
- Oxygen (O) – 65% of body weight; essential for cellular respiration and water composition.
- Carbon (C) – 18.5%; forms the backbone of organic molecules.
- Hydrogen (H) – 9.5%; found in water and organic compounds.
- Nitrogen (N) – 3.3%; key component of amino acids and nucleic acids (DNA & RNA).
These four elements are vital for life processes, making up about 96% of the human body. Oxygen is crucial for energy production in cells, carbon is the foundation of biomolecules, hydrogen plays a role in water and energy transfer, and nitrogen is necessary for protein synthesis.
Now, I will generate an image illustrating these concepts.
Here is the scientific diagram illustrating the structure of an atom, showing electrons, protons, and neutrons, along with the four major elements in the human body. Let me know if you need any modifications!
