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
vlada-n [284]
3 years ago
9

What the heck is an isotope???

Biology
2 answers:
Katarina [22]3 years ago
4 0

Answer:

Isotopes are variants of a particular chemical element which differ in neutron number, and consequently in nucleon number. All isotopes of a given element have the same number of protons but different numbers of neutrons in each atom.

Explanation:

iris [78.8K]3 years ago
3 0

Answer:

any of two or more forms of a chemical element, having the same number of protons in the nucleus, or the same atomic number, but having different numbers of neutrons in the nucleus, or different atomic weights. There are 275 isotopes of the 81 stable elements, in addition to over 800 radioactive isotopes, and every element has known isotopic forms. Isotopes of a single element possess almost identical properties.

Explanation:

You might be interested in
Action and reaction forces are equal in _____but opposite in _____.
snow_lady [41]
C. When you take a step, the ground pushes back on your foot with the same amount of force. If it pushed back with less, your foot would go through the floor; if it pushed back with more, it would actually push your foot off the ground. But they're in opposite directions; your foot pushes down, while the ground pushes up.

Hope this helps!
5 0
2 years ago
Read 2 more answers
In the rock cycle, sediment is stripped away and transported by the process of _____ after the process of _______ has taken plac
Nana76 [90]
ʜᴇʟʟᴏ ᴛʜᴇʀᴇ!
_____________________________________________________________

In the rock cycle, sediment is stripped away and transported by the process of erosion after the process of weathering has taken place.
_____________________________________________________________

нσρє тнιѕ нєℓρѕ уσυ!.
gσσ∂ ℓυ¢к :).
нανє α gяєαт ∂αу.  

- нαηηαн ❤.
7 0
3 years ago
Which of the following is TRUE? Species on Earth today are just a fraction of all species that ever lived. The number of species
Orlov [11]

Answer:

Until recent history,extinctions have always happened gradually and on a small scale.

Explanation:

Extinction occur when environmental factors like natural disaster,habitat fragmentation,over exploitation,global change don't favor the survival of species thus gradually leads to extinction of species.

Some times human activity becomes the major problem for extinction.More over,poor reproduction,decline in population number and genetic inbreeding also leads to extinction.

99% of all species that exist on earth become disappeared.

Evolution leas to speciation which leas to formation of new species but species become extinct when they are unable to survive against competition.

8 0
3 years ago
How much 3M NaOH (MW=40) can be made from 10.0mL of a 10M solution?
vaieri [72.5K]

Explanation:

The given data is as follows.

              M_{1} = 3 M,           V_{1} = ?

              M_{2} = 10 M,         V_{2} = 10.0 ml

Therefore, calculate the volume of given solution as follows.

              M_{1} \times V_{1} = M_{2} \times V_{2}

Now, putting the given values into the above formula as follows.

            M_{1} \times V_{1} = M_{2} \times V_{2}

            3 M \times V_{1} = 10 M \times 10.0 ml    

                   V_{1} = 33.3 ml

or,                             = 0.033 L        (as 1 ml = 0.001 L)

Since, molarity of NaOH is given as 3 M and its volume is calculated as 33.3 ml.

           Molarity = \frac{\text{mass of solute}}{\text{molar mass of solute}} \times \frac{1}{\text{volume in L}}

               3 M = \frac{mass}{40 g/mol \times 0.033 L}

              mass = 3.96 g

Therefore, we can conclude that mass of NaOH is 3.96 g.

8 0
3 years ago
Which type of joint is found between the lower jaw and the skull?
a_sh-v [17]
Probably a hinge joint or a tendon.
3 0
3 years ago
Read 2 more answers
Other questions:
  • Azolla is a <br>a bryophyta <br>b algae<br>c fungus<br>d water fern<br>​
    11·1 answer
  • Approximately how many molecules of ATP are produced from the complete oxidation of one molecule of glucose (C6H12O6) in aerobic
    8·2 answers
  • The human genome contains approximately 20,000 protein-coding genes, yet it has the capacity to produce several hundred thousand
    12·1 answer
  • PLZ ANSWER ASPA which of the following is an example of natural selection? Explain why. A. cricket frogs prefer to sleep during
    12·1 answer
  • Turn the following statement into a
    6·2 answers
  • Why don't we see huge flocks of bald eagles flying around in the sky?
    12·1 answer
  • Some fish that live in pitch-dark caves have things that look like eyes but do not see.
    7·1 answer
  • Which of the following substances is neutral?
    12·1 answer
  • Who was Dr. Joseph Bell?
    14·2 answers
  • Please help, i need these note for my major test.<br> PLEASEE
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!