1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Elodia [21]
3 years ago
8

Determine if the electron configurations are valid or invalid

Chemistry
1 answer:
Hunter-Best [27]3 years ago
4 0

Answer:

1) A (valid)

2) B (Invalid)

3) B (Invalid)

4) A (valid)

5) B (Invalid)

6) B (Invalid)

Explanation:

Electronic configuration:

The electronic configuration is the arrangnment of electrons in orbitals (s, p, d, f, g, h so on) according to quantum  number and Aufbau rule.

An atom of element have orbitals, and electrons are revolving in it.

There are quantum numbers that describe the number of electron in specific shell.

The Principle quantum number is denoted by "n" and can not be "0".

These "n" is K, L, M, N and electrons are distribution in it.

K =2

L= 8

M= 18

According to Aufbau electron occupied in the lowest energy level before occupying the highest energy level.

According to this the electronic configuration is

1s², 2s², 2p⁶ and so on....

So,

"s" orbital accommodate maximum of 2 electrons

"p" orbital accommodate maximum of 6 electrons

"d" orbital accommodate maximum of 10 electrons

"f" orbital accommodate maximum of 14 electrons

and the coefficient 1, 2, 3, 4 are energy level of orbitals.

The 1st orbital is 1s and it only can occupy 2 electrons the next coming electron goes into 2s that also can occupy 2 electrons and the further electrons will go to 2p orbital.

So keeping in mind all above details we investigate all option one by one

1.  A (valid)

1s², 2s², 2p⁶, 3s², 3p⁶, 4s², 3d¹⁰, 4p⁵

This is valid option. number of electrons are rightly accommodated in orbitals. Also 3d is higher energy level than 4p.

______________

2.  B (Invalid)

1s², 2s², 2p⁶, 3s², 3p⁷

This is invalid option. number of electrons are not rightly accommodated in orbitals as "p" orbital can only accommodate 6 electrons and not more than 6.

________________

3.  B (Invalid)

[Xe], 7s², 6d¹, 5f⁸

This is Invalid option. Number of electrons are not rightly accommodated in orbitals. There should 5f orbital before 6d.

______________

4.  A (valid)

[Kr] 5s², 4d¹⁰, 5p⁵

This is valid option. number of electrons are rightly accommodated in orbitals.

______________

5.  B (Invalid)

[He]--

This is invalid option. There is no exact explanation of electron distribution in orbitals.

______________

6.  B (Invalid)

1s², 2s², 2p⁶, 3s³, 3p⁶, 4s², 3d¹⁰, 4p⁶, 5s--

This is invalid option. number of electrons are not rightly accommodated in orbitals. As "s" can accommodate only 2 electrons not 3 electrons. also there is no details of 5s

______________

You might be interested in
Which is one way that Dalton's atomic theory has been shown to be incorrect?
KATRIN_1 [288]
The answer is D. His belief is was that atoms could not be split. That is what was disproved really fast ;)
6 0
3 years ago
Which substance produces hydroxide ions in solution?
Olegator [25]

Answer:

An Arrhenius Base

Explanation:

The definition of this is a base that is a hydroxide ion donor.

8 0
2 years ago
Is a blood vessel an organ
Alika [10]
Yes, but they are tubular organs and like all other organs are made up of tissues
7 0
2 years ago
Read 2 more answers
The atomic theory proposed by dalton has been
Sidana [21]

What did Dalton's atomic theory contribute to science?

Dalton's atomic theory proposed that all matter was composed of atoms, indivisible and indestructible building blocks. While all atoms of an element were identical, different elements had atoms of differing size and mass.

3 0
3 years ago
Which organic compound builds, maintains, and replaces tissue in your body? A. protein B. carbohydrates C. lipids
Lena [83]
The answer is c. lipids
5 0
3 years ago
Other questions:
  • An unknown liquid has a mass of 4.25 × 108 mg and a volume of 0.250 m3. what is the density of the liquid in units of g/ml?
    11·2 answers
  • Which sample of matter is classified as a solution? 1. H2O(s) 2. H2O(l) 3. CO2(g) 4. CO2(aq)
    15·2 answers
  • Convert 8,740 cm3 to liters. <br> 0.874 L <br> 8.74 L <br> 874 L <br> 8740 L
    11·2 answers
  • This iron oxide mineral commonly has a reddish color and consistently has red streaks. What mineral is it?
    8·1 answer
  • 3.) this graph shows the rates of reaction in a chemical reaction with and without the addition of an enzyme
    14·1 answer
  • PLEASE HELP FELLOW BRAINLIEST I NEED YOU AND QUICK!!!!!!!!!!!!!!!!!!!!!!!! Thomas Jefferson was the first to suggest what practi
    13·2 answers
  • Need help! Don’t understand
    8·1 answer
  • Help ASAP I will mark brainliest to he correct answer
    7·1 answer
  • Which best describes how heat energy moves within the system?
    13·2 answers
  • 1. Differentiate Physical and chemical changes of matter?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!