Answer:
The atomic weight of hypothetical element will be 63.568 amu.
Explanation:
Given data:
First isotope mass = 62.2 amu
Percentage abundance of first isotope = 24%
Mass of second isotope = 64 amu
Percentage abundance of second isotope = 100- 24 = 76%
Solution:
The atomic weight of hypothetical element will be the average atomic mass of its isotopes.
Average atomic mass = [mass of isotope× its abundance] + [mass of isotope× its abundance] +...[ ] / 100
Now we will put the values in formula.
Average atomic mass = [24 ×62.2] + [76× 64] / 100
Average atomic mass = 1492.8 + 4864 / 100
Average atomic mass = 6356.8/100
Average atomic mass = 63.568 amu
The answer is electron configuration.
Aqueous Solution - The expected precipitate would consist of Cu(OH)2.
What is aqueous solution?
An aqueous solution is one in which water serves as the solvent. Chemical equations typically illustrate it by adding (aq) to the appropriate chemical formula. For instance, Na+(aq) + Cl would be used to represent a solution of table salt, as well as sodium chloride (NaCl), throughout water (aq). The word aqueous, which derives from the word aqua, means that it is dissolved in or related to water. Water is a common solvent in chemistry due to its superior solvent properties and natural abundance. Since water is frequently used as a solvent in experiments, unless the solvent is specified, the word "solution" refers to an aqueous solution. A solution wherein the solvent is a liquid but not water is referred to as a non-aqueous solution.
Because:
salt: copper(II) hydroxide
Ksp: 1.8 × 10-19
To learn more about aqueous solution from the given link:
brainly.com/question/19587902
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Answer:
<u>Physical Properties</u>
Alkali metals are good conductors of heat and electricity while halogens are poor conductors of heat and electricity.
Only specific to Alkali metals: They are soft and can be cut by knife.
<u>Chemical</u><u> </u><u>Properties</u>
Alkali metals have 1 valence electron while halogens have 7 valence electrons.
Alkali metals react with non-metals to form ionic compounds while halogens react with non-metals to form covalent compounds.
You can also look at the trends ( melting/boiling point, reactivity) down their group.
