A rock weighing 32.0 g is placed in in a graduated cylinder displacing the volume from 22.3 mL to 27.6 mL. What is the density o
1 answer:
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Answer: The thermocline begins at 100 meters of depth.
Step-to-step explanation:-
Thermocline is a transition oceanic water layer between deep and surface water in which water temperature decreases rapidly with increasing depth.
From the given graph it cam be seen that at 100 meters the thermoline begins such that the temperature drops from to
.
Hence, the thermocline begins at 100 meters of depth.
Answer: The ion is . The chemical symbol of the noble gas this ion is isoelectronic with Kr.
Explanation:
The given electronic configuration is,
The number of electrons = 2 + 2 + 6 + 2 + 6 = 18 electrons
As the ion has a charge of +2 , that means it has lost two electrons so the the neutral element will have 2 more electrons i.e 18+2 = 20. The element has atomic number of 20 and the element will be Calcium with electronic configuration of
Thus the symbol of ion is . the nearest noble gas with 18 electrons is Krypton with symbol Kr.