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
Bad White [126]
3 years ago
7

One radioactive isotope of calcium has an atomic mass of 47,how many neutrons are in the calcium -47 nucleus

Chemistry
1 answer:
jekas [21]3 years ago
6 0

Answer: 27 neutrons

Explanation:

Recall that the number of protons in the nucleus of an atom = Atomic number.

Hence, Calcium with mass number 47 and atomic number 20 will have 20 protons

Therefore, since Mass number = number of protons + neutrons

47 = 20 + neutrons

Neutrons = 47 - 20 = 27

Thus, there are 27 neutrons in radioactive calcium nucleus.

You might be interested in
What will a presumptive test find?
LenaWriter [7]
Presumptive tests, also known as preliminary tests or field tests, allow drugs to be quickly classified into a particular chemical group, but do not unequivocally identify the presence of a specific chemical compound.
4 0
3 years ago
Which energy source uses a fuel that produces a large amount of energy from a small amount of fuel
Vitek1552 [10]
That would be either, nuclear power or wind power, depending on what the teacher is looking for...
8 0
3 years ago
Potassium -39 has how many neutrons
enyata [817]
Potassium has 20 neutrons

Hope this helps
5 0
3 years ago
Define weak force and strong force pls need it thanks so much :) :)
Semmy [17]
In particles physics, the weak interaction (the weak force or weak nuclear force) is one of the four known fundamentals interactions of nature, alongside the strong interaction, electromagnetism, and gravitation.
 
 This is based on my research, hope it helped :) <span />
6 0
3 years ago
A teacher wants to perform a classroom demonstration that illustrates both chemical and physical changes. Which would be the bes
Fofino [41]

A bike rusting is an example of a chemical change since rusting is a chemical reaction. New substances are formed from this reaction. On the other hand, other choices given are just physical changes because only the shape or the physical form of the substances are being changed. An example of a physical change is cutting a paper.

4 0
3 years ago
Other questions:
  • BRAINLIEST ANSWER.... How many bonding and nonbonding electrons are on the nitrogen atom in NO2?
    5·1 answer
  • How many grams of the excess reactant remain assuming the reaction goes to completion and that you start with 15.5g of na2s and
    14·2 answers
  • Solution A is 0.44 M and reacts with 0.11 M of solution B. Assume that the value of x is 0, the value of y is 1, and r is 1.07 ×
    8·1 answer
  • 1. How does hydrogen bonding affect water molecules?
    12·1 answer
  • I need help with both of the questions fast plz!!!
    15·1 answer
  • What is the mass, in grams, of one mole of any substance known as?
    15·2 answers
  • Write a balanced equation for rusting. (Assume rust becomes Fe+2)
    8·1 answer
  • What type of galaxy is most common?<br><br> Elliptical<br> Irregular<br> Lens<br> Spiral
    7·2 answers
  • 1. What is a taste bud?
    15·1 answer
  • An increase in blood CO2 or a decrease in blood ph will lead to which change in respiration?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!