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
soldier1979 [14.2K]
3 years ago
12

What is the isotope notation for an element with a mass number of 226 and 138 neutrons?

Chemistry
1 answer:
Katyanochek1 [597]3 years ago
5 0

                         226RA 88

RA is for radium.

put 226 next to RA then put 88 below 226 and next to RA if you can or simply put 226RA88.

This is the best I could do hope this helps.

Sorry if it doesn't.

You might be interested in
Convert 8.876 × 10^12 m^2 to units of km^2.
Darya [45]

Answer:

8.876\times 10^{18}\ km^2

Explanation:

In this problem, we need to convert 8.876 \times 10^{12}\ m^2 to km².

We know that,

1 km = 1000 m

⇒ 1 km² = 10⁶ m²

So,

8.876 \times 10^{12}\ m^2=8.876 \times 10^{12}\times 10^6\ km^2\\\\=8.876\times 10^{18}\ km^2

So, 8.876 \times 10^{12}\ m^2 is equal to 8.876\times 10^{18}\ km^2.

7 0
3 years ago
__________ is designed to protect you from injuries to your head, face, eyes, ears, hands, feet, respiratory tract, and body. A.
Nadusha1986 [10]
_________ is designed to protect you from injuries to your head, face, eyes, ears, hands, feet, respiratory tract, and body
the answer to this question, is B personal protective equipment
hope this helps :D
3 0
3 years ago
Read 2 more answers
Which of the following did Mendeleev not believe in because he could not see them?
Zigmanuir [339]

Answer:atoms

Explanation:

6 0
3 years ago
It is required to prepare 1250 kg of a solution composed of 12 wt.% ethanol and 88 wt.% water. Two solutions are available, the
bekas [8.4K]

Answer:

437.5 kg of first solution and 812.5 kg of second solution should be mixed to get desired solution.

Explanation:

Let the mass of the first solution be x and second solution be y.

Amount solution required = 1250 kg

x + y = 1250 kg....[1]

Percentage of ethanol in required solution = 12% of 1250 kg

Percentage of ethanol in solution-1 = 5% of x

Percentage of ethanol in required solution = 25% of y

5% of x +  25% of y =12% of 1250 kg

\frac{5}{100}\times x+\frac{25}{100}y=\frac{12}{100}\times 1250 kg

x + 5y = 3000 kg...[2]

Solving [1] and [2] we :

x = 437.5 kg   , y =  812.5 kg

437.5 kg of first solution and 812.5 kg of second solution should be mixed to get desired solution.

8 0
3 years ago
An isotope of cesium has 55 protons and 78 neutrons. What is the mass number of this isotope?
mixer [17]

The only stable caesium isotope is 133Cs, with 78 neutrons.

Hope this answers your Q

4 0
3 years ago
Other questions:
  • What is the best classification for this sample of crude oil?
    6·2 answers
  • List the 5 chemicals with the highest flash point. (In order, staring with the highest)
    5·1 answer
  • The half life of radon-222 is 3.8 days. How much of a 100 gram sample is left after 15.2 days ?
    6·2 answers
  • When dissolved in water, which of the following would conduct electricity the best?
    13·1 answer
  • And done! :)))))))))
    10·2 answers
  • Standard reduction potentials are 1.455 V for the PbO2(s)/Pb(s) couple, 1.82 V for Co3 (aq)/Co2 (aq), 3.06 V for F2(g)/HF(aq), 1
    10·1 answer
  • How do gamma rays differ from a microwave
    10·1 answer
  • I NEED HELP PLEASE, THANKS!
    13·1 answer
  • Which phrase justifies why the theory of evolution is a theory and not a law?
    7·2 answers
  • CH=C-CH=CH– CH = CH, what is the name of this molecule?​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!