Why do atoms form covalent bonds versus ionic bonds? Why are ionic bonds stronger than covalent? How do metals and nonmetals react with each other? Which property do metalloids share with nonmetals? Why are halogens and alkali metals likely to form ions?
Explain why cations tend to form ions with radii smaller than their neutral atom. How do periodic trends work, especially in regards to ionization energy, reactivity, electronegativity, and atomic radii? What role does atomic number play in the periodic table? Why does the fluorine atom tend to...
A. Why do the group 8A elements rarely react with other elements? B. Why do we no longer accept Dalton's statement that all atoms of an element must be exactly alike? Consider the elements: He, Ne, and Ar. Can you come up with a r...
The structures of pure metals are simple to describe since the atoms that form these metals can be thought of as identical perfect spheres. More specifically the metallic structure consists of 'aligned positive ions' (cations) in a "sea" of delocalized electrons. This means that the electrons ...
Group 16 elements form ions with what charge? For metal ions not in groups 1, 2, or 13, how does the name of the cation differ from the name of the metal? The following ions are isoelectronic, meaning that they have the same number of electrons. Which...
And then you would say well then how do you make a battery that has any lifetime at all if the electrolyte reacts with the electrodes? But by luck and by chance, when the reaction occurs, the reaction products turn out to be... solid on the negative electrode. They form a...
As electronegative groups move the 1H NMR signals downfield, the presence of new peaks at approximately 8–9 ppm is associated with the presence of more electronegative atoms after the reaction with PMS, which changes the structure of the outer membrane of E. coli (Fig. S4a). In contrast, ...
“In the case of our Moon, the Apollo sample has strongly indicated that the Moon was once molten and that the Moon and Earth are isotopically very similar,” explains Hyodo. Isotopes are atoms of the same element that have slightly different weights due to the number of neutrons in theato...
Why do atoms react to one another instead of fusing together completely? Why is graphite a good conductor whereas diamond is not? (Both contain infinite lattices of covalently bound carbon atoms) What are atoms and why are they important?
Because oppositely charged ions attract each other, these atoms will readily form chemical bonds with each other. Why Do Atoms Form Bonds? You can use theperiodic tableto make several predictions about whether atoms will form bonds and what type of bonds they might form with each other. On th...