How many total electrons would lithium have if its electron configuration is 1s2 2s1?

Chemistry

1 answer:

Solnce55 [7]3 years ago

5 0

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.

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8 0

3 years ago

1. why is HCl not a good choice as the acid to catalyze a dehydration reaction?

Len [333]

Answer:

1) HCl contains the Cl^- which is a good nucleophile

2) 2-methyl-2- heptanol > 2-heptanol > 1-heptanol

3) see image attached

Explanation:

If the dehydration of alcohols is carried out using HCl, the chloride ion which is a good nucleophile will attack the substrate to yield an undesirable product.

The dehydration of alcohols is an E1 reaction. Recall that the ease of E1 reaction increases in the order 3°> 2°> 1°. Hence, 2-methyl-2- heptanol forms a tertiary carbocation intermediate during dehydration and has the greatest ease of dehydration.

The three products formed during the dehydration of 3,3-dimethyl-2-butanol are shown in the image attached. Two out of the three are formed by rearrangement reactions.