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
Anna [14]
3 years ago
8

An isotope of manganese has 25 protons and 30 neutrons. What is the mass number of this isotope?

Chemistry
1 answer:
GalinKa [24]3 years ago
5 0

Answer:

55

Explanation:

mass number is neutron + proton

25+30

=55

note that the atomic number is =proton

You might be interested in
Coal is transported from mine to plant via “unit trains” that usually consist of 100 cars each carrying 100 tons of coal. If one
abruzzese [7]
I think it’s mass number 12
3 0
3 years ago
What are the rows of the periodic table called?
Gala2k [10]

Answer:

B. Groups

Explanation:

6 0
2 years ago
Read 2 more answers
Which is a factor in determining the average atomic mass of an element?
kvasek [131]
The factor in determining the average atomic mass of an element is: 
B or 2 relative abundance of each isotope because the by looking at how many protons , electrons and neutrons the most isotope is of the element has relative abundance. 
7 0
3 years ago
Read 2 more answers
Melting glaciers are causing _____________ to rise around the world.
Dovator [93]
Sea levels sea levels
7 0
3 years ago
Describe the difference between the normal and<br> mutated hemoglobin amino acid sequences:
astraxan [27]

Answer:

The chain of colored boxes represent the first eight amino acids in the beta chain of hemoglobin. The sixth position in the normal beta chain has glutamic acid, while sickle beta chain has valine. This is the sole difference between the two

Explanation:

3 0
3 years ago
Other questions:
  • Two steel containers of equal volume contain two different gases at the same temperature. the first container holds 1.3 moles of
    6·1 answer
  • Express as an ordinary number.<br><br> 3.85 x 10 -3 =<br><br> 0.00385<br> 3,850<br> 0.385
    10·2 answers
  • Which of the following only takes into account distance and time? Question 18 options: displacement velocity speed acceleration
    12·1 answer
  • What is the thinnest type of crust?
    9·1 answer
  • What is the base metric unit for measuring volume
    11·1 answer
  • Rutherford's research was primarily involved with: electron distribution defining the components of nuclei using electromagnetic
    13·1 answer
  • The balanced chemical equation, C (s) + O2 (g) CO2 (g), can be expressed in words as...
    6·2 answers
  • Please dont answer if you dont know.​<br>It's the parts of a wave
    8·1 answer
  • How many grams of H2O will be formed when 36.8 g H2 is mixed with 40.2 g O2 and allowed to completely react to form water
    14·1 answer
  • What is the mass in grams of 14.2 liters of sulfur dioxide gas at STP?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!