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
mote1985 [20]
3 years ago
13

Chemistry Questions: Which of the following is a reasonable ground-state electron configuration?

Chemistry
1 answer:
Fudgin [204]3 years ago
5 0
A ground state electron configuration follows the Aufbau Principle that states that electrons should be filled up in orbitals in increasing energy. In the given sequences, the right configuration is 
<span>1s2 2s2 2p6 3s2 3p6 4s2 3d8. 

2) the possible confirmation that follows Aufbau's principle is
D. </span><span>-[Kr] 5s24d105p3</span>
You might be interested in
What volume of 0.205 m k3po4 solution is necessary to completely react with 154 ml of 0.0110 m nicl2? 1.65 l?
sasho [114]
The balanced equation for the above reaction is 
2K₃PO₄   + 3NiCl₂  ---> 6KCl + Ni₃(PO₄)₂
stoichiometry of K₃PO₄  to NiCl₂ is 2:3
the number of NiCl₂ moles reacted - 0.0110 mol/L x 0.154 L = 1.69 x 10⁻³ mol
if 3 mol of NiCl₂ reacts with - 2 mol of K₃PO₄ 
then 1.69 x 10⁻³ mol of NiCl₂ reacts with - 2/3 x 1.69 x 10⁻³  = 1.13 x 10⁻³ mol of K₃PO₄
molarity of K₃PO₄ solution given - 0.205 M
there are 0.205 mol in 1 L
therefore 1.13 x 10⁻³ mol are in - 1.13 x 10⁻³ mol / 0.205 mol/L = 5.51 mL
volume of K₃PO₄ required - 5.51 mL
3 0
3 years ago
How many grams of sodium nitrate (NaNO2) will dissolve in 100g of water at 20°C?​
inn [45]
88g ( so sorry if this isn’t correct )
8 0
3 years ago
What does the atomic number of an element specify? what does the atomic number of an element specify?
GREYUIT [131]
The atomic number of an element identifies the number of protons and electrons.
8 0
3 years ago
Unlock all of them<br> pls pls pls pls pls pls pls pls pls pls pls pls
ladessa [460]
What do you mean by unlock all of them? Please explain
7 0
3 years ago
When planning a simple experiment, what does it mean to “test one variable”?
SSSSS [86.1K]

Answer:

I believe the answer is "b". "During the experiment, the scientist has only one element, or variable, that is changed to test the hypothesis."

Explanation:

I remember from last year but I'm not totally sure. Good luck!

3 0
3 years ago
Other questions:
  • How many molecules does one mole of O2 gas have
    10·1 answer
  • Pick an appropriate solvent to dissolve a glucose(polar b salt(ionic cvegetable oil(non polar? d sodium nitrate (ionic
    12·1 answer
  • If a gas is moved from a large container to a small container but its temperature and number of moles remain the same, wh
    5·2 answers
  • A chemistry student must separate should barium sulfate from the aqueous solution. Equipment and glassware normally found in the
    11·1 answer
  • What’s the oxidation number of k2so4
    7·1 answer
  • For the reaction PCl5(g) 4 PCl3(g) 1 Cl2(g) Kp 5 23.6 at 500 K a. Calculate the equilibrium partial pressures of the reactants a
    7·1 answer
  • The speed of sound in a container of gas at 20.0°C is v. If the temperature of the gas is increased to 80.0°C, the new speed wil
    7·1 answer
  • Which is a characteristic of the polar water molecule?
    7·1 answer
  • Answer pls will give brainliest
    9·1 answer
  • Sections of Earth’s continents are in slow, constant movement.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!