Answer:
Hexane
Explanation:
These are hydrocarbons from the same group with general formula CnH2n+2.
So, the more molecular mass are (the more number of carbons) the higher boiling point will be.
Hexane has the most number of carbon atoms(6) , so the highest molecular mass and the highest boiling point.
The human eye can detect light at wavelengths between 400 to 900 nanometers. That is why we call this part of the electromagnetic spectrum visible light.
Answer: 2 : 1
Explanation:
Cation :
Ca - calcium = atomic number = 20
Electron dot configuration : 2, 8, 8, 2
Ca losses 2 electrons in its outermost shell and thus has a charge of 2+ in other to attain a stable octet state.
Anion:
F - has 7 valence electrons and thus needs 1 electron to achieve a stable octet state, hence it accepts one electron has has a charge of (-1)
Therefore,
Ratio of cation (+) to negative (-) = 2 :1
Answer:
Periodic Properties of the Elements
Atomic Radius.
Ionization Energy (ionization potential)
Electron Affinity.
Electronegativity.
Metallic Character.
Other Trends.
Redox Potentials. Oxidation Potential. Reduction Potential.
Uses in knowing the Periodic Properties of Elements
Explanation: