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
Svetllana [295]
3 years ago
12

Isotopes of an element have Select one: a. the same atomic number and same atomic weight. b. the same atomic number but differen

t atomic weights. c. different atomic numbers but the same atomic weight. d. different atomic numbers and different atomic weights.
Chemistry
1 answer:
Levart [38]3 years ago
8 0

Answer:

Option B same Atomic number and Different Atomic weight

Explanation:

Isotope are those inwhich no of protons (Atomic number) is same and mass number (A=n+Z) is different

Examples: Cl-35& Cl-37

And O-16& O-18

And option C corresponds to Isobars with same mass number and different atomic number.

You might be interested in
What is the empirical formula for a compound that is 83.7% carbon and 16.3% hydrogen?
zubka84 [21]
Hello!

We use the amount in grams (mass ratio) based on the composition of the elements, see: (in 100 g solution)

C: 83.7% = 83,7 g 
H: 16.3% = 16.3 g 

Let us use the above mentioned data (in g) and values will be ​​converted to amount of substance (number of moles) by dividing by molecular mass (g / mol) each of the values, lets see:

C:  \dfrac{83.7\:\diagup\!\!\!\!\!g}{12\:\diagup\!\!\!\!\!g/mol} \approx 6.975\:mol

H: \dfrac{16.3\:\diagup\!\!\!\!\!g}{1\:\diagup\!\!\!\!\!g/mol} = 16.3\:mol

We note that the values ​​found above are not integers, so let's divide these values ​​by the smallest of them, so that the proportion is not changed, let's see:

C:  \dfrac{6.975}{6.975} = 1

H:  \dfrac{16.3}{6.975} \approx 2.3

Note: So the ratio in the smallest whole numbers of carbon to hydrogen is 3:7, t<span>hus, the minimum or empirical formula found for the compound will be:
</span>
\boxed{\boxed{C_3H_7}}\end{array}}\qquad\checkmark

I hope this helps. =)
8 0
2 years ago
The figure above shows the basic concepts of cell division
Cerrena [4.2K]
A. DNA is copied. 
- The cell duplicates its DNA in order to have a complete set in eac cell when it divides.

6 0
3 years ago
In the sixteenth century, the geocentric theory was a daim with substantial evidence. Which of the following best describes why
Ronch [10]

Answer:

The heliocentric theory was better supported by data explaining the rotation of the planets and other bodies in the solar system.

Explanation:

3 0
2 years ago
A student will measure and record the growth of two flowering plants every day for 28 days. Plant A will be watered and fertiliz
mestny [16]
The conclusion that would support the students prediction is B) Plant "A" grows taller than Plant "B".
If the student thinks that adding fertilizer to the plant would help it grow then answer B) would make the most sence.
5 0
3 years ago
Read 2 more answers
When calcium forms an ion that has the same number of outer electrons as which noble gas?
Talja [164]
The answer is 4 krypton
6 0
3 years ago
Other questions:
  • How did the cathode ray tube contribute to the history of atomic structure?
    13·1 answer
  • How does convection heat the air?
    8·1 answer
  • The energy change, ∆H, associated with the following reaction is +81 kJ. NBr3(g) + 3 H2O(g) → 3 HOBr(g) + NH3(g) What is the exp
    11·1 answer
  • What is this wave transferring to the tree?
    13·1 answer
  • What characteristics or characteristics contribute to the attraction between earth and the moon​
    9·2 answers
  • NaCl + H2SO4 ---&gt; Na2SO4 + HCl<br> Balance the double replacement chemical reaction.
    15·2 answers
  • Is viscosity and surface tension the same
    15·1 answer
  • What is the energy of an electron in a Li+ ion when an electron moves from n = 2 to n =3?
    15·1 answer
  • Panuto: Punan ang talaan sa ibaba at suriing mabuti ang sarili upang higit mong
    6·1 answer
  • A 10.0-g sample of magnesium reacts with oxygen to form 16.6 g of magnesium oxide. How many grams of oxygen reacted?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!