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
dezoksy [38]
3 years ago
7

How many protons are in the radioactive isotope 40/19K

Chemistry
2 answers:
NNADVOKAT [17]3 years ago
4 0
I am assuming K is potassium and potassium atoms have 21 protons and 21 neutrons. hope that helps some
 
zmey [24]3 years ago
3 0

The answer to this question is 19

You might be interested in
Definition of isotopes
sukhopar [10]
Isotopes are atoms of the same element that have different numbers of neutrons.
5 0
3 years ago
Read 2 more answers
What happens to these physical properties as the strength of intermolecular forces increases?Increase or decrease?a) melting poi
docker41 [41]

Boiling Point, Melting Point, Viscosity, Surface Tension. Decrease: Vapor Pressure.

6 0
3 years ago
What was the name for the secret code used by many alchemists?
ahrayia [7]

Answer:

A. Zodiac

B. Palingenesis

C. Palabra mysteria

D. Decknamen

The correct answer is D. Decknamen.

Explanation:

5 0
3 years ago
What is chemistry?????​
Thepotemich [5.8K]

Answer:

chemistry - the science that studies the properties of substances and natural fenomens .

...........

6 0
3 years ago
Read 2 more answers
Electron pair geometry and molecular geometry may be the same or may be different.
soldier1979 [14.2K]
True. For example, electron domain geometry and molecular geometry of water and ammonia are different.
8 0
3 years ago
Other questions:
  • The aprticles that are lost, gained, or shared in chemical reactions are?
    13·1 answer
  • A student fires a bow and arrow in gym class and all his arrows land close to each other, but not on the bullseye. This student
    11·1 answer
  • A meander is best described as a
    10·1 answer
  • Describe in detail how you would determine the density of a potato that is too large to fit into a graduated cylinder. (Hint: Th
    12·1 answer
  • Calculate the heat of decomposition for this process at constant pressure and 25°C: CaCO3(s) → CaO(s) + CO2(g) The standard enth
    5·1 answer
  • What are some examples of multi-celled organisms?
    14·2 answers
  • A titration of 0.1 M NaOH into 1.2 L of HCl was stopped once the pH reached 7 (at 25C). If 0.4 L of NaOH needed to be added to a
    5·1 answer
  • What are two elements that produce background radiation on earth and what do their decay equations look like?
    15·2 answers
  • Which of the following is an element? aluminum bronze table salt brass
    11·2 answers
  • Can someone help??. This is super hard
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!