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Andrej [43]
3 years ago
14

Apply the rules and principles of electron configuration to draw the orbital diagram of aluminum. Use the periodic table to help

you.
Chemistry
1 answer:
fredd [130]3 years ago
6 0

The electronic configuration of Aluminum is 2,8,3.

<h3><u>Explanation:</u></h3>

Aluminum is a metallic element belonging to group 3 of periodic table. Its atomic number is 13.

The rules of electronic configuration is

A. The maximum number of electrons a shell can hold is determined by 2n² where n is the shell number numbered from the one as 1 which is nearest to the nucleus.

B. Each shell has some subshells which actually holds the electrons. Shell 1 has only s subshell where as shell 2 has s and p subshells and so on.

C. Afbau's principle states which subshell of which shell is first filled. For example, 4s subshell is filled before 3d subshell which is stated by Afbau's principle.

The atomic number 13 is filled like- 1st shell has 2 electrons, 2nd shell has 8 electrons and 3rd shell has 3 electrons.

It is also represented as 1s², 2s²,2p⁶, 3s² 3p¹.

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Given the following balanced equation, determine the rate of reaction with respect to [SO2].
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Answer:

Rate = -1/2 Δ[SO<sub>2</sub>]/Δt

so its gonna be (in more simple terms) rate= -1/2Δ(SO2)/Δt

Explanation:

7 0
2 years ago
Answer these two questions, please.
IRINA_888 [86]

Answer:

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7 0
2 years ago
What is the iupac name of the following compound? <br><br> 2,2-dimethyl-4-ethylheptane
Lady bird [3.3K]

Answer:

The IUPAC name of the compound has already been given which is 2,2-dimethyl-4-ethylheptane.

Explanation:

The IUPAC (International Union of Pure and Applied Chemistry) is an authority in chemistry that provides a guideline and standardized methods in the naming of compounds formed from the periodic table.

In order the give an IUPAC name to a compound, certain steps needs to be followed, these includes:

--> Identify the functional group in the compound as this will form the suffix. For example if the functional group is an alkane the suffix will be -ane.

--> Identify the longest carbon chain (it may not be a straight chain) that contains the functional group. This forms the prefix. Example: if the longest carbon chain is 7 carbon atoms then the prefix will be hept-

--> All the carbons of the longest chain should be numbered

--> Identify branched groups on the chain and name them according to the number of carbon atoms. They usually end with -yl.

--> Finally, combine the elements of the name is a single word.

The structural formula of the IUPAC compound can be found in the attached file for a better understanding. The branched groups are circled.

4 0
3 years ago
Given 2Na + Cl2=2NaCl, what is the excess reactant? What is the limiting reactant?
QveST [7]

Answer: The limiting reactant is Na

Explanation:

5 0
3 years ago
Iodine-131 half life 8.040 how long will it take for a 40 gram sample of iodine-131 to decay to 0.75 grams
otez555 [7]

Answer:

See explanation below

Explanation:

To get this, we need to apply the general expression for half life decay:

N = N₀e(-λt)    (1)

Where:

N and N₀ would be the final and innitial quantities, in this case, masses.

t: time required to decay

λ: factor related to half life

From the above expression we need λ and t. To get λ we use the following expression:

λ = t₁₂/ln2   (2)

And we have the value of half life, so, replacing we have:

λ = 8.04 / ln2 = 11.6

Now, we can replace in (1) and then, solve for t:

0.75 = 40 exp(-11.6t)

0.75 / 40 = exp(-11.6t)

ln(0.01875) = -11.6t

-3.9766 = -11.6t

t = -3.9766 / -11.6

<h2>t = 0.34 days</h2><h2></h2>
3 0
3 years ago
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