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
vladimir1956 [14]
3 years ago
11

How many valance electrons does He need to get to 8

Chemistry
1 answer:
mote1985 [20]3 years ago
5 0

Answer:

Any element in group 18 has eight valence electrons (except for helium, which has a total of just two electrons

You might be interested in
_______is the division of the cytoplasm at the end of mitosis.
tankabanditka [31]

Answer: D. CYTOKINESIS

Explanation:

Mitosis<em> </em>ends<em> with telophase, or the stage at which the chromosomes reach the poles. ... Telophase is followed by </em>CYTOKINESIS<em>, or the division of the cytoplasm into two daughter </em><em>cells.</em>

6 0
3 years ago
A magnesium ion, Mg2+, is formed from a magnesium atom, Mg.
konstantin123 [22]

Answer:

The correct row is B.

Explanation:

The formation of the magnesium ion, Mg²⁺, comes from the removal of 2 electrons from the valence shell of the magnesium atom.<em> </em>Since the remotion is of electrons, the nucleus of the atom remains the same, so the number of protons and the number of neutrons does not change.<em> </em>

If the number of proton change, then the atom also change, since the identity of an atom is related to the atomic number which is the same to the proton number.          

Now, if the number of neutrons changes, then we would be in the presence of an isotope of the magnesium atom.        

Therefore, the correct row is B.  

I hope it helps you!                            

5 0
3 years ago
Write the condensed nd structural formulas as well as the names for all isomers of C3H5Cl3.
Sergio039 [100]

Answer:

1) 1,1,1-trichloropropane

2) 1,1,2-trichloropropane

3) 1,2,2-trichloropropane

4) 1,2,3-trichloropropane

Explanation:

For this question, we must remember that isomers are molecules that have the <em>same formula but different structure</em>s. For the formula C_3H_5Cl_3 we can draw a <u>linear chain of three carbons</u> and change the position of the chlorine atoms in the carbon chain.

With this in mind, if we put all the chlorine atoms on the same carbon we will get <u>1,1,1-trichloropropane</u>. If we change an atom from chlorine to carbon 2 we will obtain <u>1,1,2-trichloropropane</u>. If we move another chlorine atom to carbon two we will get <u>1,2,2-trichloropropane</u>. Finally, if we put a chlorine atom in each carbon we will obtain <u>1,2,3-trichloropropane</u>.

See figure one for further explanations

I hope it helps!

4 0
3 years ago
Balence K2MnO4(aq) +Cl2(g) ------&gt; KMnO4(s) + KCl(aq)
Colt1911 [192]
2K2MnO4 + Cl2 -------> 2KMnO4 + 2KCl
5 0
3 years ago
HeeeeeeeeeeeelllllllllllllllllllllllpppppppppppppppppppppppppppppFind the statement about Fusion that is false.
Pie

Fusion releases less energy than fission

fusion most commonly combines heavy isotopes of hydrogen into helium.

Explanation:

Nuclear fusion is a form of reaction that involves the combination of two light nuclei to form one that is heavier in mass.

The other form is nuclear fission which is the splitting of heavier nuclei either spontaneously or when bombarded with other nuclei.

  • Nuclear fusion reactions in the core of stars powers the universe.
  • The reactions produces a huge amount of energy of a greater and massive order than fission reaction.
  • Small nuclei are involved in nuclear fusion and not the large ones.
  • Nuclear fusion degenerates into series of chain reactions that are extremely difficult to control.

learn more;

Nuclear reactions brainly.com/question/10094982

#learnwithBainly

3 0
3 years ago
Other questions:
  • What are the main properties of liquids (in contrast to gases and solids)? check all that apply. check all that apply. liquids h
    7·1 answer
  • Part b solid lithium metal and diatomic nitrogen gas react spontaneously to form a solid product. give the balanced chemical equ
    15·1 answer
  • "What can you tell about the rate of the two reactions shown in the graph?
    6·1 answer
  • Why do airbags fill evenly with gases.
    15·1 answer
  • An endothermic dissolution process a. absorbs energy as heat and has positive enthalpy of solution. b. releases energy as heat a
    6·1 answer
  • Which area of chemistry best links the use of titanium and plastics in artificial bone and joint replacements?
    14·1 answer
  • Which statement is not true about the periodic table?
    10·1 answer
  • Is a 3.3% solution dilute or concentrated?<br><br><br><br> Dilute<br><br><br><br> Concentrated
    8·1 answer
  • Read the word equation: “Propane gas plus oxygen gas produces __________.”
    8·1 answer
  • When rubbing alcohol and water are at room temperature, which one boils first
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!