Multiple Choice Question What are the simplest substances in the bulk matter around us? O Elements O Atoms O Isotopes O Compounds
Added by Cynthia J.
Close
Step 1
The question asks for the simplest substances in bulk matter. Show more…
Show all steps
Your feedback will help us improve your experience
Dinesh Singh and 66 other Chemistry 101 educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
1) Unobtanium contains an element with a molar mass of 465.27 g/mol. What conclusions can we make about this statement regarding the atoms in this element? a) There are some atoms with a molar mass greater than 465.27 g/mol, and some with a molar mass less than 465.27 g/mol. b) There is only one isotope of this element. c) All atoms have the same number of protons. d) All atoms have the same molar mass of 465.27 g/mol 2) Suppose that a new element was discovered on the Moon. It has a molar mass of 304.62 g/mol and one naturally occurring isotope. What can we conclude about the atoms in this new element? a) Some of the atoms have an atomic mass greater than 304.62 amu. b) The atoms have an equal number of protons and neutrons. c) The atoms have the same number of protons and the same number of neutrons. d) Some of the atoms have an atomic mass less than 304.62 amu 3) The element vanadium (atomic weight = 50.94 amu) has two stable isotopes, vanadium-50 with an atomic mass of 49.947 amu and vanadium-51 with an atomic mass of 50.944 amu. What can we conclude about the atoms in vanadium? a) The isotopes have different numbers of protons. b) There are more vanadium-51 atoms compared to vanadium-50 atoms. c) There is an isotope of vanadium with an atomic mass of 50.940 amu. d) Both isotopes have the same percent natural abundance
Dinesh S.
________ are the basic building blocks of the matter that we see all around us. A. Electrons B. Chemicals C. Elements D. Compounds
Shahina -.
Ronald P.
Recommended Textbooks
Chemistry: Structure and Properties
Chemistry The Central Science
Chemistry
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD