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
-Dominant- [34]
3 years ago
14

Describe the pattern of the lewis dot structure of the first 18 elements

Chemistry
1 answer:
posledela3 years ago
6 0

Explanation: Lewis dot structures are the structures which represent the valence electrons of an atom. The dots in the structure are considered as the valence electrons.

First 18 elements of the periodic table are Hydrogen(H), Helium (He), Lithium (Li), Beryllium (Be), Boron (B), Carbon (C), Nitrogen (N), Oxygen (O), Fluorine (F), Neon(Ne), Sodium (Na), Magnesium (Mg), Aluminium (Al), Silicon (Si), Phosphorous (P), Sulfur (S), Chlorine (Cl) and Argon(Ar).

The valence electrons are the electrons which are present in the outermost shell of an atom. The electronic configuration of the elements are:

Hydrogen (H) = 1s^1 ; Valence electrons = 1

Helium (He) = 1s^2 ; Valence electrons = 2

Lithium (Li) = 1s^22s^1 ; Valence electrons = 1

Beryllium (Be) = 1s^22s^2 ; Valence electrons = 2

Boron (B) = 1s^22s^22p^1 ; Valence electrons = 3

Carbon (C) = 1s^22s^22p^2 ; Valence electrons = 4

Nitrogen (N) = 1s^22s^22p^3 ; Valence electrons = 5

Oxygen (O) = 1s^22s^22p^4 ; Valence electrons = 6

Fluorine (F) = 1s^22s^22p^5 ; Valence electrons = 7

Neon (Ne) = 1s^22s^22p^6 ; Valence electrons = 8

Sodium (Na) = 1s^22s^22p^63s^1 ; Valence electrons = 1

Magnesium (Mg) = 1s^22s^22p^63s^2 ; Valence electrons = 2

Aluminium (Al) = 1s^22s^22p^63s^23p^1 ; Valence electrons = 3

Silicon (Si) = 1s^22s^22p^63s^23p^2 ; Valence electrons = 4

Phosphorous (P) = 1s^22s^22p^63s^23p^3 ; Valence electrons = 5

Sulfur (S) = 1s^22s^22p^63s^23p^4 ; Valence electrons = 6

Chlorine(Cl) = 1s^22s^22p^63s^23p^5 ; Valence electrons = 7

Argon (Ar) = 1s^22s^22p^63s^23p^6 ; Valence electrons = 8

  • Elements hydrogen and helium belong to period 1 of the period table, so the lewis dot structures will have maximum of 2 electrons
  • Elements from lithium to neon belong to period 2 and the lewis dot structures will have maximum of 8 electrons.
  • Elements from sodium and argon belong to the period 3 of the periodic table, and will have maximum of 8 electrons in their lewis dot structures.

Lewis dot structures are attached below.

You might be interested in
Question 8
Masteriza [31]
AgNO₃ and Cu(NO₃)₂  are dissolved in water
6 0
3 years ago
Magma can partially crystallize at depth and then rise to shallow depths where the remaining magma solidifies. The early-formed
Doss [256]
<h2>Phenocrysts and Porphyritic texture </h2>

Explanation:

  • The early formed crystals are of phenocrysts and the texture of these crystals is porphyritic texture.  
  • This crystallization occurs when early-forming plagioclase crystals which are rich in calcium start coating with plagioclase crystals which are rich in sodium.
  • On cooling, the magma is then processed in a volcanic eruption, after the eruption the liquid which is left behind will start cooling and forms a porphyritic texture.  

5 0
3 years ago
What is the source of energy in nuclear power plants?
Zinaida [17]

Answer:

<h2><em><u>URANIUM</u></em><em><u> </u></em></h2>

Explanation:

What is the source of energy in nuclear power plants?

<em><u>Uranium</u></em> is the fuel most widely used by nuclear plants for nuclear fission. <u>Uranium</u> is considered a nonrenewable energy source, even though it is a common metal found in rocks worldwide. Nuclear power plants use a certain kind of uranium, referred to as U-235, for fuel because its atoms are easily split apart.

4 0
2 years ago
Suppose you are working with a NaOH stock solution but you need a solution with a lower concentration for your experiment. Calcu
Svet_ta [14]

Answer:

V_1=23.3~mL

Explanation:

In this case, we have a dilution problem. We have to remember that in the dilution procedure we go from a solution with higher concentration to a solution with lesser concentration. Therefore we have to start with the dilution equation:

C_1*V_1=C_2*V_2

Now we can identify the variables:

C_1=~1.475_M

V_1=~?

C_2=~0.1374_M

V_2=~250.0~mL

If we plug all the values into the equation:

1.475_M*V_1=0.1374_M*250.0~mL

And we solve for V_1:

V_1=\frac{0.1374_M*250.0~mL}{1.475_M}

V_1=23.3~mL

I hope it helps!

8 0
3 years ago
If 125 cal are added to 56,0 g of solid iron, what is the change in temperature of the iron? The specific heat of iron
stealth61 [152]
There is the internet
4 0
2 years ago
Other questions:
  • Whats the volume of 0.522 moles of carbine dioxide
    8·1 answer
  • A sample of nitrogen gas, n2, is collected in a100 ml container at a pressure of 688 mm hg and a temperature of 565 °c. how many
    12·2 answers
  • Sodium bicarbonate is the chemical name for baking powder. Its chemical formula is NaHCO3. What does the subscript 3 mean?
    7·2 answers
  • The main difference between heat and temperature is that temperature is solely dependent on the A. mass of a body. B. velocity o
    13·1 answer
  • Jodie is studying the sleeping habits of various types of animals. She wants to know how long each type of animal sleeps during
    7·1 answer
  • PLEASE HELP MEEE!!!!!!!!!
    14·1 answer
  • What happens when an electrically charged pencil is placed close to the water running from a faucet?
    13·2 answers
  • In which way are the scientific method and the design process the same?
    5·1 answer
  • a solution of HCI contains 36 percent HCI,by mass and calculate the mole fraction of HCI in the solution?​
    14·1 answer
  • Please answer as fast as you can
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!