« previous next »

Author Question: What is the minimum energy an incoming electron must have to knock a K shell electron (n = 1 ) out ... (Read 25 times)

jwb375

  • Hero Member
  • *****
  • Posts: 540
on: Jul 29, 2018
What is the minimum energy an incoming electron must have to knock a K shell electron (n = 1 ) out of an atom of molybdenum, which contains 42 protons?
 
  A) 34.4 keV B) 24.0 keV C) 10.1 keV D) 11.3 keV E) 44.0 keV
 
  A) 118 keV B) 5.19  107 eV C) 0.865 eV D) 164 MeV

Question 2

A highly ionized atom with Z = 5 has only one electron left around it, in its ground state. How much more energy is required to finish the job and have a bare nucleus?
 
  A) 13.1 eV B) 10.9 eV C) 340.0 eV D) 68.0 eV


meow1234

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The FDA recognizes 118 routes of administration.

Did you know?

The horizontal fraction bar was introduced by the Arabs.

Did you know?

In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

Scanning electron micrograph of a nematode within a plant leaf. Scanning electron micrograph of a nematode within a plant leaf.
Electron Microscope Images of a Diatom Electron Microscope Images of a Diatom
Energy changes in reactions. Energy changes in reactions.
Reductive electron transport sequences in the action of rNDP Reductase Reductive electron transport sequences in the action of rNDP Reductase
A police record search of 250 incoming Grade 10 at a Secondary School shows that 26 had been ... A police record search of 250 incoming Grade 10 at a Secondary School shows that 26 had been ...
Energy In, Energy Out Energy In, Energy Out
Video: Blood Test Basics

For a complete list of videos, visit our video library