Answer:
alkali metals: 1 valence electron, very reactive metals
alkaline earth metals: 2 valence electrons, reactive metals
halogens: 7 valence electrons, very reactive nonmetals
noble gases: 8 valence electrons, very little reactivity
Explanation:
The groups increase by 1 valence electron as you move from left to right across the periodic table, skipping over the transition metals. The closer an element is to having a full octet of 8 valence electrons, the more reactive it will be. The alkali metals and halogens are both just 1 away from an octet -- alkali lose an electron, halogens gain one. This makes them very reactive.
Answer:
3.5e-6
Explanation:
divide the length value by 1e+6
Need More Help?
Here is how to convert mm to km!
To convert a millimeter measurement to a kilometer measurement, divide the length by the conversion ratio.
What is bigger Km or mm?
1 Kilometer (km) is equal to 1000000 millimeters (mm).
Hope this helps!
=)
Answer:
Degrees Celsius (°C)
Explanation:
Liters is for liquid, grams is for mass, and millimeters is for length
Answer:
A
Explanation:
If we intend to achieve the anti addition of Hex-3-yne to yield (E) Hex-3-ene, the we must use Na/NH3. The first step of the reaction involves the transfer of an electron from sodium to the alkene; this yields a radical anion. Strong electron replusion ensues between the single electron and the lone pair on the carbon. This now forces the both to be found at a trans position to each other and this is the basis of the stereochemistry of the product.
Secondly, the radical anion abstracts a proton from ammonia. Another sodium atom transfers an electron leading to the formation of a vinyl carbanion, the alkyl groups are now trans to each other.
This carbanion now abstracts a proton from ammonia and the final product is formed.