Answer:
Elements in the same period have the same (number of electron shells)
Answer:
The liquid level will rise in Side A and drop in Side B.
Step-by-step explanation:
The membrane is impermeable to sucrose, but permeable to sucrose and water.
<u> Side A </u> <u> Side B </u>
2 M sucrose 1 M sucrose
1 M glucose 2 M glucose
(a) Ignoring osmotic effects
The glucose will diffuse spontaneously from the side with higher concentration to that of lower concentration until equilibrium is established. There is no change in volume on either side.
At this point, we have
<u> Side A </u> <u> Side B </u>
2 M sucrose 1 M sucrose
1.5 M glucose 1.5 M glucose
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(b) With osmotic effects
The solute concentration on Side A is greater than on Side B.
Water will diffuse into Side A.
The liquid level will rise in Side A and drop in Side B.
Answer:
b
Explanation:
it is impossible for n & l to be equal
Answer:
This reaction is both precipitation reaction as well as double displacement reaction.
In a double displacement reaction the anions are exchanged and in a precipitation reaction, a precipitate is formed in the end. In this case, AgCl is the precipitate.
Answer:
How many electrons are there in the lithium ion?
The battery goes on and on and on.
Each element have an electron configuration in depending of the principle (Hund’s rule , etc).
So by their atomic number tend to indicate the number of protons that are equal in a number of electrons.
So the atomic number indicate the numbers of electrons.
Atoms have direct stability as such lithium tend to be located in group 1A and period 2.
Lithium have the atomic number of 3.
So naturally their protons/number of electrons are 3.
The electron configuration is (LI) 1s² 2s¹ or [He] 2s¹.
To archive stability as any noble gas element HE , Then the lithium will form an electron to form a Lithium ion which is Cation LI+.
So by it the lithium ion had 2 electrons.
