Number of neutrons = 8
<h3>Further explanation</h3>
Given
7 protons, 7 electrons, and a mass number of 15.
Required
Number of neutrons
Solution
Within the atom there are subparticles, namely protons, neutrons and electrons
Protons and neutrons are present in the atomic nucleus, while electrons surround the atomic nucleus in the atomic shell
Atomic number = number of protons = number of electrons
Mass number= number of protons + number of neutrons
15 = 7 + number of neutrons
number of neutrons = 8
Don’t really understand what you’re asking but, if you’re asking how to read a graduated cylinder:
Look at the graduated cylinder at eye level, find the meniscus, whatever the meniscus is at is your answer.
What are you needing help with ?????
The seed..
it grows and becomes a tree that creates more fruit
so its fleshier.
Answer:
See below
Explanation:Plot the known concentrations and adsorbance data. Draw a best fit line through thwe points. When the absorbance of a solution of unknown concentration (but same substance) is determined, find the concentration from the line at that absorption value. See attached graph.
E.g., an sample of the same substance had an absorbance of 0.35. Find that on the x scale and then determine the concentration that would be required to produce that level of absorbance. 0.483M in this case.
