Half life is defined as the time when the final concentration reduced to half of the initial value.
Thus, for first half life, the remaining percentage of the reactant is 50 percent that is 
Now, for second half life, the remaining percentage will be 50 percent of the remaining 50 percentage that is 
or 
Thus, general formula for n half lives =
Now, 98.4 years is equal to eighth times 12.3 years that is 
=
remaining material.
Therefore, mass of the nuclide will remain after 98.4 years= 
= 
Mass of remaining nuclide after 98.4 years =
YES! good job
they do tend to gain electrons!
Answer:
The data will be error free and more correct.
Explanation:
The data will show no error while testing the adsorptive properties of a new material if no centrifuge method is not used because there is no need for centrifuge method. For determining the adsorptive properties of a new material, we can measure the data after dissolving . Adsorption is the adhesion of atoms, ions or molecules from a gas, liquid or dissolved solid to a surface while on the other hand, Centrifugation is the process where a mixture is separated from one another through fast spinning. so for determining the adsorptive properties, no centrifugation process is required and we get the correct data without centrifugation.
Answer:
<h2>0.62 mL</h2>
Explanation:
The volume of a substance when given the density and mass can be found by using the formula
From the question we have
We have the final answer as
<h3>0.62 mL</h3>
Hope this helps you
Answer:
A
Explanation:
A hydroxide ion is given as:
OH⁻
The electron dot notation shows only the chemical symbol of the element surrounded by dots to represent the valence electrons. The chemical symbol denotes the nucleus and all electrons except the valence electrons.
The dots are arranged on the four sides in pairs.
Oxygen is made up of 6 valence electrons, and since the ion has a net negative charge, the hydrogen and oxygen achieved their stable configuration this way.
