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
Gala2k [10]
2 years ago
8

I have my last 3 electrons on the third energy level.

Chemistry
1 answer:
weqwewe [10]2 years ago
5 0

Answer:

an energy level represents the three dimensional space surrounding nucleus where electrons are most likely to be.

Explanation:

You might be interested in
An igneous rock that contains mostly proxene and olivene has ___.
tangare [24]
It has an ultramafic composition 
Hope this helps ;)
6 0
3 years ago
Which of the following correctly represents the radioactive decay of cesium-137?<br><br>​
pishuonlain [190]
What are the answers ??
5 0
3 years ago
A student is told that both energy and mass must be conserved in every chemical reaction. She measures the mass of Hydrochloric
salantis [7]

Answer:

Explanation:

When we react Hydrochlorid Acid with zinc we have the following reaction:

2HCl(aq) + Zn(s) --> ZnCl2(aq) + H2(g)

The hydrogen gas formed is lost to the environment, so we can affirme that in the start we have the mass for all the H, Cl and Zn atoms in the solution, but after the reaction occurs, we have only the mass for the Cl and Zn atoms.

That's why the mass is less than the original.

The law that the student was told is only applied to closed environments.

6 0
3 years ago
Read 2 more answers
Explain how the effects of nuclear charge and the increasing number of core electrons in an atom oppose each other.
Kipish [7]
The nulear charge is the number of protons.

As the number of protons increases, the nuclear charge grows ant thhe pulling electrostatic force between them and electrons also grows, given that the electrostatic force is proportional to the magnitude of the charges.

As the number of electrons grows, they occupy outer shelss (farther from the nucleus). And the outer electrons will feel not only the atraction of the protons from the nucleus, but the repulsion of the inner electrons.

Then, we see that the increase of nuclear charge is opposed by the increase of core electrons, and the outer (valence) electrons are not so tied to the nucleus as the core electrons are.

This is called shielding effect. A way to quantify the shielding effect is through the effective nuclear charge which is the number of protons (Z) less the number of core electrons.

The more the number of core shells the greater the shielding effect experience by electros in the outermost shells.

The shielding effect, explains why the valence eletrons are more easily removed from the atom than core electrons, and also explains some  trends of the periodic table: variationof the size of the atoms in a row, the greater the shielding efect, the less the atraction force felt by the outermos electron, the farther they are and the larger the atom. 


3 0
3 years ago
A little aluminum boat (mass of 14.50
Valentin [98]
When the volume is 450 cm3 so the boat will displace 450 g.

so we have  450 g - 14.5g = 435.5 left 

so to get how many pennies can be added to the boat before it sinks can be determined by:

divided the mass for the one penny:

no.of Penny = 435.5 / 2.5g

                     = 174.2 

∴ the boat will float with 174 pennies and will start to sink with 175 

5 0
3 years ago
Other questions:
  • What is the partial pressure of oxygen in a gas mixture that is 40% oxygen, 40% argon, and 20% helim?
    7·1 answer
  • Normal ph of water and rainwater​
    5·2 answers
  • Acid hydrolase, a digestive enzyme, would most likely be found in which organelle?
    12·2 answers
  • As you watch a sufur ride a wave toward the shoreline what is the shoreline
    15·1 answer
  • I'll give the first person with all the correct answers brainliest
    8·2 answers
  • The molar mass of a substance is 92.010g. The substance is 30.4% nitrogen and 69.9% oxygen. What is the empirical formula and th
    9·1 answer
  • Please help I’ll give 9 points
    12·1 answer
  • Call me fortnite because boys play me 24/7 <br> it's a joke!!!!!!
    6·2 answers
  • 10 ml of solution of acetic acid is added to 250 ml volumetric flask , the concentration of diluted vinegar is 0.01 M. What is t
    11·1 answer
  • 6. For which movement of earth materials is gravity not the main force?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!