The amount of energy required to remove one electron from the outermost shell.
Since each ml of water weights 1 g, 0.1 liters of water = 100 grams. As well, "kilo" means "thousand". So 1 kilogram (kg) = 1000 grams. This means 100 g = 0.1 kg.
Answer:
The isotope with mass 6.015amu =7.5% abundance
The isotope with mass 7.016amu = 92.5%
Explanation:
<u>Step 1:</u> Given data
Lithium has an average atomic mass of 6.941 amu
Lithium has 2 isotopos with a mass, respectively 6.015amu and 7.016amu
<u>Step 2: </u>Calculate the abundances
Isotope with mass 6.015 amu has an abundance of X
Isotope with mass 7.016 amu has an abundance of Y
The average atomic mass is the average mass of the isotopes with its respectively abundance.
X+Y = 1 or X = 1 - Y
6.941 = 6.015X +7.016Y
This gives us:
6.941 = 6.015(1-Y) +7.016Y
6.941 = 6.015 - 6.015Y + 7.016Y
6.941 - 6.015 = -6.015Y +7.016Y
0.926 = 1.001Y
Y = 0.925
Y = 92.5%
X = 1- 92.5 = 7.5%
To control we can do the following equation:
6.015*0.075 + 7.016*0.925 = 6.941
This means the abundances of the 2 isotopes are:
The isotope with mass 6.015amu =7.5% abundance
The isotope with mass 7.016amu = 92.5%
Answer:Sodium chloride solid is not a mixture. ... It cannot be physically separated into its components, Na+ and Cl−
Explanation:Sodium chloride is formed when sodium atoms interact with chlorine atoms. When this occurs, sodium will donate an electron (which is a negatively-charged particle) to chlorine. This makes sodium slightly positive and chlorine slightly negative.
Opposite charges attract, right? So then, sodium ions will attract chloride ions and form an ionic bond. By the way, chloride is the term used to designate the anion form of chlorine. The result is a crystallized salt that has properties that are different from the two parent elements (sodium and chlorine). The chemical formula for sodium chloride is NaCl, which means that for every sodium atom present, there is exactly one chloride atom.