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
Nikitich [7]
3 years ago
9

Magnesium (Mg) has an atomic number of 12. What is the ground-state electron configuration of magnesium?

Chemistry
2 answers:
devlian [24]3 years ago
7 0

The answer is   1s22s22p63s2

Brums [2.3K]3 years ago
4 0

C. 12222632

You have to follow the Aufbau principle, which states that electrons populate the atomic orbitals situated at the lowest energy first.


The orbitals are:

1

22

333

4444

5555

666

77

You might be interested in
What does how will u experiment mean in making a science project
Lady_Fox [76]
How are you going to experiment means how will you show your project in a real life situation like a penny being cleaned with different acids.
7 0
3 years ago
How many moles are in 3.00x 10^22 atoms of He?
sp2606 [1]

Answer:

<h2>0.05 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L} \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{3.0 \times  {10}^{22} }{6.02 \times  {10}^{23} }  \\  = 0.049833...

We have the final answer as

<h3>0.05 moles</h3>

Hope this helps you

3 0
3 years ago
Describe the importance of the water cycle in the terms of;
nikitadnepr [17]

Answer:

ii.

Explanation:

Regulating weather patterns

3 0
2 years ago
What do all nickel atoms have in common
Mama L [17]
All nickel atoms would have the same number of protons or atomic number.
4 0
4 years ago
Witch wave is mad up of vibrating electric and magnetic fields that can move through space at the speed of light
8_murik_8 [283]

Answer:

Hiya! Your answer would be an Electromagnetic Wave.

Explanation:

Electromagnetic Wave is an electromagnetic wave that travels through space at the speed of light at about 300,000 kilometers per second. So when we talk about light traveling in waves, we can also talk about frequency, or the number of wavelengths that pass a certain point in a given length of time. We usually measure this as the number of wavelength cycles that pass per second. The units for this measurement are Hertz (hz).

So, if the wavelength of a light wave is shorter, that means that the frequency will be higher because one cycle can pass in a shorter amount of time. This means that more cycles can pass by the set point in 1 second. Likewise, a light wave that has a longer wavelength will have a lower frequency because each cycle takes a longer time to complete.

Hope I helped and I hope you get it right! :). Have a lovely day my friend!

~Bella

3 0
3 years ago
Other questions:
  • Why are cirrocumulus clouds sometimes called mackerel clouds
    14·1 answer
  • A 7.85 × 10-5 mol sample of copper-61 emits 1.47 × 1019 positrons in 90.0 minutes. what is the decay constant for copper-61
    12·1 answer
  • The following reaction was carried out in a 3.00 L reaction vessel at 1100 K:
    11·1 answer
  • Which of the following is an example of a saturated hydrocarbon?
    10·2 answers
  • Use the bond energies provided to estimate ΔH°rxn for the reaction below. CH3OH(l) + 2 O2(g) → CO2(g) + 2 H2O(g) ΔH°rxn = ? Bond
    12·2 answers
  • How does an element differ from a compound? How are they similar?
    8·1 answer
  • Convert 300c into kelvin and Fahrenheit scale
    8·1 answer
  • Which of these celestial objects is the smallest
    14·2 answers
  • How does the separation of a mixture containing salt, sand and naphthalene support the law of conservation of matter
    9·1 answer
  • What net force must act on the book to make it accelerate to the left at a rate
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!