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
Irina-Kira [14]
2 years ago
7

What is the specific activity (in Ci/g) if 1.65 mg of an isotope emits 1.56X10⁶α a particles per second?

Chemistry
1 answer:
marta [7]2 years ago
4 0

The specific activity (in Ci/g) if 1.65 mg of an isotope emits 1.56X10⁶α a particles per second.

<h3>What is isotope?</h3>

Isotopes are two or more types of atoms with the same atomic number (number of protons in their nuclei) and periodic table position (and so belong to the same chemical element), but distinct nucleon numbers due to differing numbers of neutrons in their nuclei. While all isotopes of a given element have nearly identical chemical properties, their atomic weights and physical properties differ.

The term isotope is derived from the Greek roots isos and topos, which means that different isotopes of the same element occupy the same position on the periodic table. Margaret Todd, a Scottish doctor and writer, coined the phrase in 1913 as a recommendation to British chemist Frederick Soddy.

To learn more about isotopes visit:

brainly.com/question/11680817

#SPJ4

You might be interested in
Calculate the MASS if the density is 2.34 g/mL and the volume is 12.50 mL.
AlexFokin [52]

Answer:

<h2>mass = 29.25 g</h2>

Explanation:

The denisty of a substance can be found by using the formula

Density =  \frac{mass}{volume}

Making mass the subject we have

<h3>mass = Density × volume</h3>

From the question

Density = 2.34 g/mL

volume = 12.50 mL

Substitute the values into the above formula and solve for the mass

That's

mass = 2.34 × 12.50

We have the final answer as

<h3>mass = 29.25 g</h3>

Hope this helps you

3 0
3 years ago
Nuclear energy is an alternate energy source produced from atomic reactions.
soldier1979 [14.2K]
True true true true true true 
8 0
3 years ago
Read 2 more answers
Help needed ASAP, I will mark your answer as brainliest.
beks73 [17]

Answer:

D

Explanation:

^

6 0
2 years ago
Read 2 more answers
The heat of fusion for water is 80. cal/g. how many calories of heat are released
Ray Of Light [21]

800 calories are released


7 0
3 years ago
Plz help!!!!!!
Sever21 [200]

this shows that magnesium is higher in the reactivity series than lead.

I don't think there can be an ionic equation written because both components are in solid form and neither is in an aqeuos state.

5 0
3 years ago
Other questions:
  • Al2(SO4)3(s) + H2O(l) ---- Al2O3(s) + H2SO4 (aq) calculate enthalpy formation for this reaction. Balance the reaction. Calculate
    15·1 answer
  • Calculate the energy required to ionize a ground state hydrogen atom. report your answer in kilojoules.
    9·1 answer
  • Which of these are neutral salts? Check all that apply.
    11·2 answers
  • There is nothing that you can do to conserve energy. True or False
    12·2 answers
  • If you have a gas that starts out with a pressure of 720 mm Hg and a volume of 1500mL, what is the new volume if you increase th
    6·1 answer
  • Sugar dissolves in water explain heterogeneous and homogeneous ​
    9·2 answers
  • Atomic number equals the number of
    6·1 answer
  • Which of the following is the correct formula for Ca2+ reacting with NO2??
    7·1 answer
  • What would you need to do to calculate the molality of 10 mol of NaCl in 200
    14·1 answer
  • 8. Which type of bond results when one or more valence
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!