Answer:
a. Tellurium
b. Rubidium
c. Argon
d. Astatine
Explanation:
a. An element of the same family as oxygen corresponds to group 16 or 6A, its most stable ion is -2, therefore if the ion has 54 electrons the neutral element should have 52 electrons and also 52 protons. Tellurium
b. The ions from alkali metals are +1, therefore the neutral elements have 1 more electron and proton, since the ion has 36 electrons the neutral element has 37. Rubidium
c. This is direct, look for the element with Z = 18. Argon
d. This is also direct, look for the element with Z = 85. Astatine
Answer:
0.690666... g/cm^3
Explanation:
density=mass/volume. mass is 2.331 g and using the length we can determine that the volume of the cube is 3.375 cm^3. 2.331/3.375= 0.6906666....
Answer:
The Three terms that describe the compounds are:
b. Diastereoisomers have different configurations at one or more (but not all) of the equivalent stereocenters and are not mirror images of each other.
c. Enantiomers are mirror images of each other, and so differ in configuration at all stereocenters.
d. Epimers are diastereomers that differ in configuration of only one stereogenic center.
Explanation:
Anomers are isomers of monosaccharides with more than 5 carbon atoms that have developed a hemiacetal bond, can take a cyclic structure and determine 2 different positions for the oxydryl ion.
Answer:
Trucks, airplanes, and trains are used to transport people and supplies from one place to another.
Explanation: