The number next to cobalt (58) represents the atomic mass.
The atomic mass consists of protons and neutrons.
We know that the atomic number = # of protons.
- Look at a periodic table to find Cobalt's atomic number which is 27, meaning there are 27 protons.
-To find the number of neutrons, take 58-27 = 31 neutrons.
Therefore the answer is (1) 27 Protons and 31 Neutrons
Explanation:
As the given data is as follows.
=
and, =
T = 80.5 K
According to the given condition,
= =
=
p = nkT =
Therefore, putting the given values into the above equation as follows.
=
=
Therefore, the required pressure is .
Answer:
Molecular solids and covalent network solids are two types of solid compounds. The key difference between molecular solid and covalent network solid is that <em>molecular solid forms due to the action of Van der Waal forces </em>where as <em>covalent network solid forms due to the action of covalent chemical bonds.</em>
hope this helps
Answer:
1. Draw a pencil line across the filter paper, 1 - 2 cm from the bottom.
2. Use a pipette or capillary tube to add small spots of each ink to the line on the paper.
3. Place the paper into a container with a suitable solvent in the bottom. For example, water. Make sure the water level is below the pencil line.
4. Allow the solvent to move through the paper, but remove the chromatogram before it reaches the top.
5. Allow the chromatogram to dry.
Extras : preferably use a lid to prevent evaporation and use a pencil or any suitable device to prop the paper in place, make sure the sides of the paper doesn't touch the sides of the beaker.