Concept explainers
What is the difference between an atom and a molecule? A molecule and a crystal?
Differentiate among a molecule, an atom and a crystal.
Explanation of Solution
Write the differences among the molecule, an atom, and a crystal.
Molecule |
Atom |
Crystal |
1. A molecule is a combination of two or more atoms. |
1. An atom is the smallest particle in an element having the properties of the element in it, which means, this is the un-split-able part of an element. |
1. Crystals are formed when metals from liquid or soft state are solidified as the atoms get rearranged into different neat configurations. This is what we know as crystals. |
2. It is not visible to the naked eye, though it can be seen with the help of a high capacity magnifying microscope and some other devices. |
2. We cannot see atoms through our naked eyes. Atoms are also the basic building blocks. |
2. A crystal consists of atoms, molecules or ions ordered in a highly densed microscopic structure where those are bound together by inter atomic forces also known as chemical bonds. For example, ionic bonds, metallic bonds, Vander Waals bonds, covalent bonds and so on. |
3. Properties such as physical or chemical are depend on atoms from that they are bonded. |
3. Properties such as physical or chemical are depend only on one type of atom. |
3. In case of crystal, physical or chemical properties are depending on parent atom, molecules, ions etc. |
Want to see more full solutions like this?
Chapter 1 Solutions
Manufacturing Engineering & Technology
Additional Engineering Textbook Solutions
Automotive Technology: Principles, Diagnosis, And Service (6th Edition) (halderman Automotive Series)
INTERNATIONAL EDITION---Engineering Mechanics: Statics, 14th edition (SI unit)
Applied Fluid Mechanics (7th Edition)
Mechanics of Materials
Applied Statics and Strength of Materials (6th Edition)
Statics and Mechanics of Materials (5th Edition)
- In the appendices, the modulus of elasticity for silicon nitride is 304 GPa (that of steel is 207 GPa). How much porosity could be present in the round bar of silicon nitride such that it equals the reported value for steel?arrow_forwardIn a research lab where ceramics are heat treated for further application, you are presented with two unlabelled specimens (A, B) of bio-ceramics and told that they have the same basic chemical composition, but one has been sintered properly and the other has not been sintered at all. Sample A has larger pore size, and somewhat smaller grains than Sample B. If all ceramics have to be heat treated, which of the specimens need to go into the furnace? Select one: a. Sample A to go into furnace O b. Neither Sample A nor B to go into the furnace O c. Both Samples A and B to go into the furnace Od. Sample B to go into furnacearrow_forwardAssume we have to accommodate 18 million books, each of which has 1 billion characters. If each character can be written using 100atoms, and if the bulk atoms can be used, calculate the size of an object (in nanometers) that can accommodate all the 18 million books. Assume one atom occupies a space which is 0.25 nm in sizearrow_forward
- Calculate how many billion years it will take to build 1 mole of a molecule with a formula of CnH2n+2 by adding 84 million atoms per second. Assume n=8 and 1 year=365 days. Use three significant figures (e.g. say 36.4 and not 36)arrow_forwardWhy do crystalline polymers tend to have higher density than amorphous ones?arrow_forwarda) : Explain in detail the Type of Materials used in automobile (at least 5 major components) structure and identify the specific material. (b) :. Prove that the atomic packing factor (APF) for the BCC crystal structure is 0.68.arrow_forward
- Estimate the number of atoms that exist in a cubic centimeter of a solid material. This process will be aided by choosing an element and examining its density in the solid phase. (Use vanadium, whose density is 6.11 g/cm3 and whose atomic mass is 50.942 u. Calculate the number of atoms that exist in a cubic centimeter of this material.)arrow_forwardCreate your own tree diagram of ceramics materials classification based on application, then briefly discuss the diagram you created in five sentencesarrow_forwardWhat is the molecular weight (in g/mol) of polypropylene with a DP of 1200?arrow_forward
- Write or introduce the following topics of ceramics: • Types of ceramics • Sintering • Metal processing • Bioactive glassarrow_forward1. In engineering, why is the density of a particular engineering substance so crucial? Clearly explain. 2. What do the terms "single crystal" and "polycrystalline substance" mean? Briefly compare and contrast them. 3. Describe how x-ray diffraction is used to quantify elastic strain. Please answer all with full detail, Thank youarrow_forwardMy project tilte is Interfacial and mechanical properties of polypropylene/silica nano- and microcomposites with Fabrication and Analysis Please help me what is the best subtitle in literature review what will be the heading for the liturer reviewarrow_forward
- Welding: Principles and Applications (MindTap Cou...Mechanical EngineeringISBN:9781305494695Author:Larry JeffusPublisher:Cengage Learning