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
marusya05 [52]
3 years ago
14

How does the abundance of various isotopes affect the atomic mass?

Chemistry
1 answer:
eduard3 years ago
6 0

solution:

The quoted atomic mass on the Periodic Table is the WEIGHTED average of the individual isotopic masses. The higher the isotopic percentage, the MORE that isotope will contribute to the isotopic mass. For this reason, most masses that are quoted on the Table are non-integral.

By way of example we could look to the hydrogen atom. The VAST majority of hydrogen atoms (in this universe) are the protium isotope. i.e. 1H, whose nuclei contain JUST the defining proton. There is a smaller percentage (>1%) of hydrogen atoms WITH one NEUTRON in their nuclei to give the deuterium isotope. i.e. 2H, and because this is relatively cheap, and easily incorporated into a molecule, deuterium labelling is routinely used in analysis.

And there is even a smaller percentage of hydrogen atoms with TWO NEUTRONS in their nuclei, to give the tritium isotope. i.e. 3H. The weighted average of the isotopic percentages gives 1.00794⋅g⋅mol^{−1}


You might be interested in
15 points?
11111nata11111 [884]

Answer:

D. the organism is able to survive and reproduce more than others in it's environment

Explanation:

It will only go extinct if it can't survive or reproduce.

3 0
3 years ago
Read 2 more answers
At the heart of the stars, nuclear fusion merges _____ together in the nucleus of atoms to create new elements?
Goshia [24]

Answer:

lighter atoms especially hydrogen

Explanation:

At the heart of the stars, nuclear fusion merges lighter atoms especially hydrogen together in the nucleus of atoms to create new elements.

During nuclear fusion small atomic nuclei combines to form larger ones with the release of a large amount of energy.

The energy released provides the needed temperature for another set of hydrogen atoms to fuse. This process is in turn yields another set of helium atom which releases a lot of energy.

A chain reaction progresses which leads to the formation of new elements.

3 0
3 years ago
Formal charge of Cl in CHCl3
Vsevolod [243]
FC(C) = 4 - 0.5*8 - 0 = 0) FC(Cl) = 7 - 0.5*2 - 6 = 0
6 0
3 years ago
Can someone please help me, best answer gets BRAINLIEST
salantis [7]

Answer:

9839 is your answer mate .

Plz mark brainliest and follow me ❤❤❤❤

7 0
3 years ago
I NEED THIS FOR EXAM
Hitman42 [59]

Answer:

Occurs in substances that have at least one non-metal

Explanation:

The overlapping sets which is denoted by the region B is best attributed to connote with the choice "occurs in substance that have at least one non-metal".

To form an ionic bond, a metal and a non-metal must exchange electrons in order to an electrostatic attraction to occur.

In the case of covalent bonds, non-metals shares their valence electrons to form a bond by attaining an octet configuration.

So, we see that a pre-requisite for both bonds to form is a minimum of the presence of a non-metal.

3 0
3 years ago
Other questions:
  • Atoms that have the same number of valence electrons in their outer shell
    7·1 answer
  • In wich situation can a mixture always be called a solution
    12·2 answers
  • An element belonging to the halogen family would be expected to have a ________ ionization energy and a ________ electron affini
    6·1 answer
  • What type of van der Waals force exists between molecules of oxygen?
    14·1 answer
  • How many electrons does the isotope oxygen-18 have?<br> 6<br> 8<br> 10<br> 18
    13·1 answer
  • A reaction vessel contains 2.50 moles of ci2 and 6.15 moles of f2 how many moles of excess reactant are left
    12·1 answer
  • A container holds 1 mole of helium gas. The volume of the container is 2 liters and the pressure inside the container is 105.0 k
    11·1 answer
  • 1. Lithium, water, edible salt, chalk, Carbon, Lime, Nitrogen, Potassium, Oxygen,
    11·1 answer
  • Please answer asap!
    6·1 answer
  • The metal zirconium becomes superconducting at temperatures below 3.4000K.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!