sound wave cannot travel without a medium.
Answer:
Fluorine
General Formulas and Concepts:
<u>Chemistry</u>
- Reading a Periodic Table
- Periodic Trends
- Electronegativity - the tendency for an element to attract an electron to itself
- Z-effective and Coulomb's Law, Forces of Attraction
Explanation:
The Periodic Trend for Electronegativity is up and to the right of the Periodic Table.
Fluorine is Element 9 and has 9 protons. Radium is Element 88 and has 88 protons. Therefore, Radium has a bigger Zeff than Flourine.
However, since Radium is in Period 7 while Fluorine is in Period 2, Radium has more core e⁻ than Fluorine does. This will create a much larger shielding effect, causing Radium's outermost e⁻ to have less FOA between them. Fluorine, since it has less core e⁻, the FOA between the nucleus and outershell e⁻ will be much stronger.
Therefore, Fluorine would attract an electron more than Radium, thus bringing us to the conclusion that Fluorine has a higher electronegativity.
scientific notation : answer
<span>Very quick oxidation reactions result in combustion.
Reason
Oxidation reaction involved reaction with oxygen. Consider following example:
C6H12O6 + 6O2 </span>→ 6CO2 + 6H2O
(glucose) (carbon dioxide)
From the above reaction, it can be seen that, oxidation state of C in glucose in zero, while that in CO2 is +4. Thus, oxidation state of C is increased from 0 to +4. This process is called oxidation. Further, complete oxidation of reactant molecule is referred as combustion.
Answer:
Another view could be from this definition: (Electron Sea Model) : The metallic bond consists of a series of metals atoms that have all donated their valence electrons to an electron cloud that permeates the structure. This electron cloud is frequently referred to as an electron sea. It might help to visualize the electron sea model as if it were a box of marbles that are surrounded by water. The marbles represent the metal atoms and the water represents the electron sea.
Explanation:
