25Mn can be prepared by electron capture from:
(a) 55/24Cr
(b) 55/26Fe
(c) 56/25Mn
(d) 51/23V
(e) 56/26Fe

  1. 👍 0
  2. 👎 0
  3. 👁 157
  1. wouldn't it take 25 protons and one electron to make 24 protons?

  2. so the answer is A?

    1. 👍 0
    2. 👎 0
  3. b

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry

    1. What is the change in atomic mass number when an atom emits an alpha particle? decreases by 2 *decreases by 4 increases by 2 increases by 4 2. If an isotope decays by the process of beta emission, ____. the mass number changes

    asked by Anonymous on May 1, 2013
  2. chemistry

    Balance these nuclear equations. Can some please help I don't understand these at all 1. 35/17 Cl + 1n -> 35/16S + _____ 2. 229/90 Th -> 4/2 He + ______ 3. 20/8 O -> 20/9F + ________ 4. 54/26Fe + 1n -> 1H + _______ 5. 104/47Ag ->

    asked by jasmine on October 25, 2013
  3. chemistry

    Help plzzz Besides the major types of radioactive decay, there are two others: positron emission and electron capture. • Compare and contrast positrons with electrons. • Explain how positron emission works and how it causes

    asked by Help!!! Maddie on May 31, 2013
  4. electron capture?

    As the question before, with the electron replaced by a proton, i thought that the electric and gravitaional forces would increse, with the electron capture mass proportion and that the direction of forces would reverse as they

    asked by honey on May 10, 2007
  5. Ecology

    Estimate the fish population of Lake Champlain using the Lincoln-Peterson Method. -Number of fish of 1st capture: 60 -Number of fish of 2nd capture: 65 Marked fish in 2nd capture: 10 -Number of fish of 3rd capture: 65 Marked fish

    asked by Anonymous on February 16, 2011
  6. Chemistry

    1.a radioscope which is neutron poor and very heavy is most likely to decay by? alpha , beta, electron capture, positron emission 2. When a 235-U nucleus is struck by a thermal neutron, fission occurs often with the release of

    asked by keith on April 27, 2007
  7. Nuc. Chem

    HELP!!! I have like 20 of these kinds of questions on my homework and no clue how to solve them. Electron capture transforms 40 K 19 into what nuclide?!?! Thank you

    asked by Jonathan on March 4, 2008
  8. Chemistry

    What are the equations for the following? Positron emission from silicon-26 and Sodium-22 undergoes electron capture I really don't get it Thank you

    asked by Aubrey on May 20, 2010
  9. Chem

    Write a balanced equation for: 1. beta decay of iodine-138 2. capture of an electron by cadmium-104

    asked by Valentina on July 21, 2016
  10. Statistics

    Can someone help me do this problem? A group of environmentalist are trying to estimate the population of the state rid in clear view park. They capture a sample of 500 birds in early spring and tag them. in august they capture

    asked by Tina on December 12, 2013

More Similar Questions