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
Elena L [17]
3 years ago
11

Draw the isotopic notation for an element with 15 protons, 18 neutrons and 18 electrons

Chemistry
1 answer:
tatiyna3 years ago
5 0

Answer:

can't be done

Explanation:

protons and electrons always are the same number,and the neutrons are found by subtracting the atomic mass and protons/electrons soooooooo it can't have 15 protons, 18 electrons, and 18 neutrons.......i hope this helped if not please tell me.

You might be interested in
What did Robert Millikan discover
butalik [34]
Starting in 1908, while a professor at the University of Chicago, Millikan worked on an oil-drop experiment in which he measured the charge on a single electron. J. J. Thomson had already discovered the charge-to-mass ratio of the electron.
6 0
3 years ago
Read 2 more answers
What is the key difference that causes the atoms of one element to differ from the atoms of the other elements? A the number of
Akimi4 [234]

Answer:

B = the number of protons

Explanation:

The atom of every elements differ from each other because of number of protons they have.

Every atom consist of neutron, proton and electron. Protons and neutrons are present with in nucleus while the electrons are present out side the nucleus.

All these three subatomic particles construct an atom. A neutral atom have equal number of proton and electron.

The number of neutrons may be same but every atom have different number of protons.

Neutron and proton are present inside the nucleus. Proton has positive charge while neutron is electrically neutral. Proton is discovered by Rutherford while neutron is discovered by James Chadwick in 1932.

Symbol of proton= P+  

Symbol of neutron= n0  

Mass of proton=1.672623×10-27 Kg

Mass of neutron=1.674929×10-27 Kg

8 0
2 years ago
Hydrogen reacts with 0.771 g of carbon to form 0.90 g of a compound. What is the mass percent of hydrogen in the compound
andriy [413]
Hello!

Answer: 14.3%

Explanation: In order to find the mass percent of hydrogen in this compound, you must determine how many grams of hydrogen you'd get in 100 g of compound. 

In your case, you know that an unknown mass of hydrogen reacts with 0.771 g of carbon to form 0.90 g of hydrocarbon, which is a compound that contains only carbon and hydrogen. 

Use the total mass of the hydrocarbon to determine how many grams of hydrogen reacted with the carbon.

Now, if 0.90 g of this compound contain 0.129 g of hydrogen, it follows that 100 g of this compound will contain.

So, if 100 g of this compound contain 14.33 g of hydrogen, it follows that the mass percent of hydrogen is 14.3%


Hope this Helps! Have A WONDERFUL Day! :)

6 0
3 years ago
How are selective breeding, cloning, and genetic engineering similar? They are all controlled by nature. They are all controlled
sveticcg [70]

Answer:They are all controlled by the human beings.

Explanation:

The selective breeding, cloning and genetic engineering are some of the techniques which is induced by the human efforts.

In case of selective breeding the male and female species having the selective characters are mated with each other so that the offspring produced  has the desired characters. It neither requires any enzyme nor uses udder cells.

In case of genetic engineering, the gene of interest is inserted in the bacterial species by the help of vector so that when the bacterial species amplify the gene of interest. This is how the desired products are produced by bacterial species. Example: Insulin production.

Cloning can be defined as another technique made by human beings in which the genetically identical species is made naturally or artificially for the benefit of the mankind.

7 0
3 years ago
Read 2 more answers
Convert 4.00 atm to mmHg
Ksivusya [100]

Answer:

3040 mmHg

Explanation:

Here

we have to convert 4.00 atm to mmHg

As we know that

The number of atm in 1 mmHg is 0.0013157895567935

Now there is 4.00 atm So, in mmHg it would be

And, according to this, the working is given below:

= 4 ÷ 0.0013157895567935

= 3,039.99

= 3040 mmHg

Hence, the last option is correct

And, the same is relevant and considered too

3 0
2 years ago
Other questions:
  • Protons, neutrons, and electrons.
    12·1 answer
  • What is the molarity of a 500.0 ml solution containing 0.75 moles of solute?
    6·1 answer
  • An element x atomic number 3,relative atomic number 6.94 and consists of two isotopes of mass numbers 6 and 7 respectively.
    11·1 answer
  • Explain why the nucleus of an atom has a positive electrical charge.
    11·1 answer
  • The solubility of calcium oxalate, CaC2O4, in pure water is 4.8 × 10‑5 moles per liter. Cal­culate the value of Ksp for silver c
    11·1 answer
  • How is 8.2 x 10^4 - 6.3 x 10^3 written in scientific notation
    11·1 answer
  • How many ATOMS are in 7.32 moles of sulfur<br> dioxide?
    10·1 answer
  • Help please
    6·1 answer
  • Is it posible Count a grain of sand?explain
    6·1 answer
  • Jesus is coming soon you guys need not repent today not tomorrow every day counts now repent today.....
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!