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
crimeas [40]
3 years ago
14

Which element has a partially filled F orbital? Sm Os Ba Bi

Chemistry
2 answers:
Sever21 [200]3 years ago
7 0
<span>Sm

For an element to have a partially filled f orbital, it will have to have an f orbital in the first place, this cancels barium, as it is the lightest of the elements listed:
 

Barium does not have an f orbital: [Xe]6s^2 or 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^10 5p^6 6s^2
 

Sm: [Xe] 4f6 6s2 Does have an f orbital AND they are partially filled (the F subshell has the potential to hold 14 electrons, but Sm only holds 6 electrons on its F subshell, therefore the electrons, by the rule of maximum multiplicity, in which the electrons will try to occupy orbitals by themselves first (the F subshell has 7 orbitals because 14/2 = 7), it leaves the f subshell with partially filled orbitals.
 
Os: Xe 4f14 5d6 6s2 all occupied f orbitals
 
Bi: Xe 4f14 5d10 6s2 6p3 Has full F orbitals </span>
uysha [10]3 years ago
7 0

<u>Answer:</u> The element having partially filled f-orbital is Samarium (Sm)

<u>Explanation:</u>

Maximum number of electrons that can be filled in f-orbital are 14. So, for the element having 14 electrons in the f-orbital will be considered as fully-filled and the element having 7 electrons in the f-orbital will be considered as half-filled.

It will be judged by electronic configuration of the elements.

For the given options:

  • <u>Option 1:</u> Samarium (Sm)

The atomic number of  samarium is 62 and number of electrons that are present are 62. The electronic configuration of samarium is:

Sm:[Xe]4f^66s^2

As, this element has electrons in f-orbital. Thus, this has partially filled f-orbital.

  • <u>Option 2:</u> Osmium (Os)

The atomic number of osmium is 76 and number of electrons that are present are 76. The electronic configuration of osmium is:

Os:[Xe]5d^56s^2

As, this element does not have electrons in f-orbital. Thus, this does not has partially filled f-orbital.

  • <u>Option 3:</u> Barium (Ba)

The atomic number of barium is 56 and number of electrons that are present are 56. The electronic configuration of barium is:

Ba:[Xe]6s^2

As, this element does not have electrons in f-orbital. Thus, this does not has partially filled f-orbital.

  • <u>Option 4:</u> Bismuth (Bi)

The atomic number of bismuth is 83 and number of electrons that are present are 83. The electronic configuration of bismuth is:

Bi:[Xe]6s^26p^3

As, this element does not have electrons in f-orbital. Thus, this does not has partially filled f-orbital.

Hence, the correct answer is samarium (Sm).

You might be interested in
What type of energy is a furnace and using a telephone? pls help
Phantasy [73]

Answer:

hope this helped

Explanation:

Radiant energy is created through electromagnetic waves and was discovered in 1885 by Sir William Crookes. Fields in which this terminology is most often used are telecommunications, heating, radiometry, lighting, and in terms of energy created from the sun.

5 0
2 years ago
Read 2 more answers
According to kinetic-molecular theory, which of the following would not be considered an ideal gas? Check all that apply.
Vikki [24]

Answer:

are a gas at very low volumes, when gas particles are very close together

a gas at very low temperatures, when gas particles have very little kinetic energy

a gas with highly polar molecules that have very strong intermolecular forces

Explanation:

4 0
3 years ago
Read 2 more answers
If a substance has a half life of 58 years and starts with 500 g radioactive, how much remains radioactive after 30 years?
Vilka [71]

Answer:

A = 349 g.

Explanation:

Hello there!

In this case, since the radioactive decay kinetic model is based on the first-order kinetics whose integrated rate law is:

A=Ao*exp(-kt)

We can firstly calculate the rate constant given the half-life as shown below:

k=\frac{ln(2)}{t_{1/2}} =\frac{ln(2)}{58year}=0.012year^{-1}

Therefore, we can next plug in the rate constant, elapsed time and initial mass of the radioactive to obtain:

A=500g*exp(-0.012year^{-1} *30year)\\\\A=349g

Regards!

5 0
3 years ago
How many moles of H atoms are there in 81.1969 grams of C2H4Cl2? plz show work
Karo-lina-s [1.5K]
Answer your lookin for is 27.
4 0
3 years ago
What is the volume of 3.00 mole of ideal gas at 100.0 C and 2.00 kPa
Novosadov [1.4K]

Answer:

The volume for the ideal gas is: 4647.5 Liters

Explanation:

Formula for the Ideal Gases Law must be applied to solve this question:

P . V = n .  R . T

We convert the T° to K → 100°C + 273 = 373 K

We convert pressure value from kPa to atm.

2 kPa . 1atm/101.3 kPa = 0.0197 atm

We replace data in the formula.

V = ( n . R . T) / P → (3 mol . 0.082 . 373K) / 0.0197 atm =

The volume for the ideal gas is: 4647.5 Liters

8 0
3 years ago
Other questions:
  • Of the three metals pb cu zn which is the most active
    6·1 answer
  • What element is in group 17 and period 2 of the periodic table?
    14·1 answer
  • I don't understand the question
    10·2 answers
  • What is the net ionic charge of an oxygen ion?
    8·1 answer
  • An antacid tablet added to a glass of water fizzes and bubbles as it mixes.
    7·2 answers
  • One mole of H2 S o4 contains off 4.22 into 10 raise to power 24 atoms is it true or false​
    15·2 answers
  • Question 8<br> What is the effective nuclear charge for a 2nd row electron in sulfur
    5·1 answer
  • Why do solids maintain a specific shape and volume?
    15·1 answer
  • Who wana give me a free brainliest? i need 1 more &lt;3
    7·1 answer
  • What is a mixture ?<br><br> How do homogeneous &amp; heterogeneous mixtures differ ?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!