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
Anvisha [2.4K]
3 years ago
11

What statement is true about isotopes?

Chemistry
1 answer:
ipn [44]3 years ago
4 0

Answer:

D. THEY HAVE THE SAME NUMBER OF PROTONS AND ELECTRONS BUT DIFFERENT NUMBERS OF NEUTRONS.

Explanation:

Isotopy is the phenomenon that explains the various variants of an element having different number of neutrons but the same number of protons and electrons.

Isotopes are variants of a particular chemical element that possesses the same number of proton or atomic number but different mass number. The atomic number of an element is the number of protons and electrons contained by the element while the mass number is the sum total of the number of protons and neutrons in the nucleus of the elements.

Examples of isotopes are the hydrogen atom, chlorine element and so on.

Hydrogen has three isotopes which are hydrogen H, Deuterium and Tritium. Chlorine has two isotopes which are chlorine 35 and chlorine 37.

So the true options about isotopes is that they possess the same number of protons and electrons but different numbers of neutrins.

You might be interested in
A. How many protons, electrons, and neutrons make up an atom
mestny [16]

Answer:

45 neutrons

Explanation:

Bromine has 35 protons and a mass number of 80. a) How many neutrons does the atom of bromine have? The mass number = protons + neutrons. Bromine has a mass number of 80 and 35 protons so 80-35 = 45 neutrons.

5 0
2 years ago
Magnesium has three naturally occurring isotopes(Mg-24, Mg-25, and Mg-26). The atomic mass and natural abundance of Mg-24 are 23
xxMikexx [17]

Answer:

The answer to your question is below

Explanation:

Data

               Atomic mass               Abundance

Mg -24 =    23.9850                         79%

Mg -25 =    24.9858                         10%  

Mg - 26=          ?                                  ?

Process

1.- Find the abundance of Mg-26

The sum of the abundance of the three isotopes equals 100%

         

 Abundance Mg-24 + Abundance-Mg-25 + Abundance-26 = 100

            79 + 10 + Abundance-26 = 100

            Abundance Mg-26 = 100 -89

           Abundance Mg-26 = 11%

2.- Find the atomic mass of Mg-26, the average atomic mass is 24.31 amu

Average atomic mass = (abundance)(atomic mass- 24) + (abundance)

                                         (atomic mass-25) + (abundance)(atomic mass-26)

    24.31 = (0.79)(23.9850)+ (0.10)(24.9858) + (Atomic mass-26)(0.11)

    24.31 = 18.94815 + 2.4986 + 0.11(atomic mass-26)

    24.31 = 21.4342 + 0.11(atomic mass- 26)

    0.11(atomic mass-26) = 24.31 - 21.4342

    0.11(atomic mass-26) = 2.8758

    Atomic mass-26 = 2.8758/0.11

 <u>   Atomic mass-26 = 26.1436 amu</u>

8 0
2 years ago
Read 2 more answers
What is formed when 2 or more atoms are held together by covalent bonds?
Ksenya-84 [330]

The group of atoms held together by covalent bonds is called a molecule

7 0
3 years ago
How many grams of sodium chloride are required to make a 1.0 L solution with a concentration of 3.5 M?
Alex777 [14]

A 1 molar solution is the molecular weight in grams in 1 litre of water, so a 3.5 molar solution would be 58.44g multiplied by 3.5, which is 204.54g in 1L

5 0
2 years ago
In which situation would hydrogen bonding be present?
Varvara68 [4.7K]

Answer:

c

Explanation:

hydrogen Bond exist between ammoia, hydrogen fluoride and water so the answer is c

5 0
3 years ago
Other questions:
  • BEST GETS BRAINLIEST!!
    6·1 answer
  • Which of the following statements is not correct?
    6·1 answer
  • Is mass conserved in chemical reactions? Make a prediction based on this question. Be sure to tell how you would determine wheth
    6·1 answer
  • These are three theorized causes of A) glacial melting. B) changing of the climate. C) high and low ocean tides. D) movement of
    12·1 answer
  • How many liters of fluorine gas, at standard temperature and pressure, will react with 23.5 grams of potassium metal?
    13·1 answer
  • For example: The solid is not completely submerged in the water. Will this technique error increase, decrease, or have no effect
    14·1 answer
  • Lithium (Li) and oxygen (O) are both in period 2. They both have _____.
    9·1 answer
  • A weak acid is titrated with 0.1236 M NaOH. From the titration curve you determine that the equivalence point occurs after exact
    5·1 answer
  • What two terms are used to describe the temperature at which solids and liquids of the same substance exist at the same time?
    5·1 answer
  • Which of the following will increase entropy in a reaction?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!