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
Phoenix [80]
3 years ago
10

The diagram shows the box for elements in the periodic table. What is the atomic number of the element shown. A. 27.0 B. 40.0 C.

26 D.13
I think it is B.40.0
Because if you do 27+13=40
It will give 0.

Chemistry
2 answers:
Deffense [45]3 years ago
8 0

Explanation:

<em>atomic</em><em> </em><em>number</em><em> </em><em>=</em><em> </em><em>no.</em><em> </em><em>of </em><em>protons</em><em> </em><em>=</em><em> </em><em>1</em><em>3</em>

<em>therefore</em><em> </em><em>atomic </em><em>number</em><em> </em><em>of </em><em>aluminium</em><em> </em><em>is </em><em>1</em><em>3</em><em> </em><em>as </em><em>given</em>

<em>so </em><em>option</em><em> </em><em>D </em><em>1</em><em>3</em><em> </em><em>is </em><em>correct</em><em> </em><em>option</em><em> </em><em>.</em>

<em>hope </em><em>this</em><em> answer</em><em> helps</em><em> you</em><em> dear</em><em>!</em><em> </em><em>take </em><em>care</em>

ss7ja [257]3 years ago
7 0

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

The atomic number of the shown element Al (Alluminium) is ~

  • 13

You might be interested in
You are investigating an organic compound. You discover that it is an aromatic compound often used as flavoring. What type of co
Dafna1 [17]
Aldehyde is the answer for Plato users!
5 0
4 years ago
Read 2 more answers
An unknown gas diffuses 1.25 times faster than CO2 gas. What is the molar mass of the unknown gas?​
hodyreva [135]

Answer:

28.16 g/mol

Explanation:

From Graham's law;

Let the rate of diffusion of gas X be 1.25

Let the rate of diffusion of CO2 be 1

Molecular mass of gas X= M

Molecular mass of CO2 = 44g/mol

1.25/1=√44/M

(1.25/1)^2 = 44/M

1.5625 = 44/M

M= 44/1.5625

M= 28.16 g/mol

4 0
3 years ago
Take a cup of water, add sugar, and stir. if the resulting solution contains sugar crystals that do not dissolve, the solution i
Strike441 [17]
When a solvent has as much of the dilute dissolved in it as possible, then it is saturated.

If you were to heat the water, its capacity would increase and would then be super-saturated because it has more dissolved in it than possible as room temp.

Since there is no heating being done, the water is just saturated.

Hope that helps!
6 0
3 years ago
Which is an example of pure chemistry? a. shape of a soybean plant b. chemicals containing carbon c. finding an antidote
Rina8888 [55]
I believe that it is B chemicals containing carbon
5 0
3 years ago
If the solution containing the metal complex ion is made acidic, why will the silver chloride precipitate
Ne4ueva [31]

Answer,

For example, silver ion can be precipitated with hydrochloric acid to yield solid silver chloride. Because many cations will not react with hydrochloric acid in this way, this simple reaction can be used to separate ions that form insoluble chlorides from those that do not.

7 0
3 years ago
Other questions:
  • A boy with pneumonia has lungs with a volume of 1.7 L that fill with 0.070 mol of air when he inhales. When he exhales, his lung
    15·1 answer
  • Which chemical formula represents the hydroxide ion? H+ H3O+ H2O OH-
    13·2 answers
  • Examplle of exchange reaction ​
    10·1 answer
  • An object with a density of 3.7kg/m^3 has a mass of 2.5g. What's the volume in mL?
    15·1 answer
  • Which of the following statements about atoms is NOT true?
    7·1 answer
  • What are the products formed when zinc reacts to dilute hydrochloride acid
    12·2 answers
  • Describe the motion of molecules in an ice cube and in a radiator in winter
    11·1 answer
  • How is primary selection different from secondary succession?
    14·1 answer
  • Tijuan mixed a solid and a liquid together in a beaker
    12·1 answer
  • Nitrogen reacts with hydrogen to produce ammonia. The chemical equation for this reaction, located below, indicates all of the f
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!