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
iogann1982 [59]
3 years ago
15

What is the quantum number set of the ground-state electron that is found in lithium (Li) but not in helium (He)?

Chemistry
1 answer:
statuscvo [17]3 years ago
3 0
The electron configuration of lithium atom is: Li:[He]2s^1

The number "2" is the value of the principal quantum number "n". Letter "s" is associated with the value of secondary quantum number "l" and it is equal to zero. The value of "m" (or magnetic quantum number) is zero too. The quantum number set for the highest energy electron will be (2, 0, 0, 1/2).
You might be interested in
Two isotopes of hydrogen fuse to form a neutron plus the larger element,A) beryllium.B) carbon.C) deuterium.D) helium.
Nezavi [6.7K]

Answer:  D) helium.

Explanation:

Nuclear fission is a process which involves the conversion of a heavier nuclei into two or more small and stable nuclei along with the release of energy.

_{92}^{235}\textrm{U}+_0^1\textrm{n}\rightarrow _{56}^{143}Ba+_{36}^{90}Kr+3_0^1\textrm{n}

Nuclear fusion is a process which involves the conversion of two small nuclei to form a heavy nuclei along with release of energy.

Example: _1^2\textrm{H}+_1^3\textrm{H}\rightarrow _2^4\textrm{He}+_0^1\textrm{n}+\text{energy}

Thus when deuterium and tritium , the two isotopes of hydrogen are fused, a heavier nuclei helium is being formed from two smaller nuclei releasing a neutron.

3 0
3 years ago
0.65743 In scientific notation
Goryan [66]
202827.0000 is the answer I think idrk
6 0
3 years ago
Find the volume of an object that has a mass of 20g and density of 184 glcm
expeople1 [14]
Volume= Mass/ Density= 20/184
= 0.108 cubic cm
8 0
3 years ago
Why are space probes and other unmanned crafts more commonly used for space investigations than space crafts with crews of astro
Crank
All of these are correct.
4 0
2 years ago
In the following reaction, how many liters of o2 will produce 43.62 liters of co2 at stp? c3h8 5 o2 3 co2 4 h2o
antoniya [11.8K]
The balanced chemical reaction:

C3H8 + 5O2 = 3CO2 + 4H2O

We are given the amount of the carbon dioxide to be produced. This will be the starting point of our calculations.

<span>43.62 L CO2 ( 1 mol CO2 / 22.4 L CO2 ) (5 mol O2 / 3 mol CO2 ) ( 22.4 L O2 / 1 mol O2) = 72.7 L O2</span>



4 0
3 years ago
Read 2 more answers
Other questions:
  • PLZZZZ HELP ME!!!!!!!!!!! will give brainliest and 20 points why is pinball used to describe the steps in the scientific process
    7·1 answer
  • Which of the following organism are most likely to show cospeciation?
    15·1 answer
  • You discover some bones that have roughly %s as much carbon-14 in them as
    10·2 answers
  • Carbon dioxide contains bonds between oxygen and carbon. What particles are between the carbon and oxygen atoms ? What keeps tho
    11·1 answer
  • What is the chief chemical property of ethers?
    10·1 answer
  • In which set of elements would all members be expected to have very similar chemical properties?A) O, S, SeB) S, Se, SiC) N, O,
    12·1 answer
  • Which of the following always contains
    12·2 answers
  • Which of the following would result if the gases that are responsible for the greenhouse effect were removed from our atmosphere
    7·1 answer
  • 61 Cu<br> 29<br><br><br> Write the complete nuclear equations for alpha absorption
    12·1 answer
  • Match each state of matter to its description.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!