Question and answer
what was Henry Moseley's contribution to the periodic table?
Henry Gwyn Jeffreys Moseley (23 November 1887 – 10 August 1915) was an English physicist. [ Moseley's outstanding contribution to the science of physics was the justification from physical laws of the previous empirical and chemical concept of the atomic number. This stemmed from his development of Moseley's law in X-ray spectra. Moseley's Law justified many concepts in chemistry by sorting the
chemical elements of the periodic table of the elements in a quite logical order based on their physics. Moseley's law advanced atomic physics by providing the first experimental evidence in favor of Niels Bohr's theory, aside from the hydrogen atom spectrum which the Bohr theory was designed to reproduce. That theory refined Ernest Rutherford's and Antonius Van den Broek's model, which proposed that the atom contains in its nucleus a number of positive nuclear charges that is equal to its (atomic) number in the periodic table. This remains the accepted model today. Please also refer to Thank you for using Weegy ]
Expert answered|Bernardo Dela Rosa|Points 105|
Question|Rated bad
Asked 11/3/2011 9:33:07 PM
0 Answers/Comments
Get an answer
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
Questions asked by the same visitor
what was Henry Moseley's contribution to the periodic table?
Weegy: The Researching around I would say discovery of the "atomic number" used for ordering the elements in the periodic table would probably be the answer. This is recorded as being in 1913. (More)
Question
Expert Answered
Asked 11/3/2011 9:40:39 PM
0 Answers/Comments
The _____________ have a single electron in the highest occupied energy level.
Weegy: valence field User: The _____________ have a single electron in the highest occupied energy level. Weegy: semiconductor like silicon and germanium (More)
Question
Expert Answered
Asked 11/4/2011 6:41:57 AM
0 Answers/Comments
what was Henry Moseley's contribution to the periodic table?
Weegy: In 1914 Henry Moseley found a relationship between an element's X-ray wavelength and its atomic number (Z), and therefore resequenced the table by nuclear charge rather than atomic weight. [ Before this discovery, atomic numbers were just sequential numbers based on an element's atomic weight. Moseley's discovery showed that atomic numbers had an experimentally measurable basis. Thus Moseley placed argon (Z=18) before potassium (Z=19) ... (More)
Question
Expert Answered
Asked 11/4/2011 8:21:26 AM
0 Answers/Comments
In the transition elements, electrons are usually added to the _______ orbital, which is why these elements are also knows as the _________.
Weegy: In the transition elements, electrons are usually added to the outer orbital, which is why these elements are also knows as the transition metals (More)
Question
Expert Answered
Asked 11/4/2011 8:27:18 AM
0 Answers/Comments
As the nuclear charge increases across a period, the effective nuclear charge _________ pulling the electrons closer to the nucleus and ________ the size of the atom.
Weegy: As the nuclear charge increases across a period, the effective nuclear charge INCREASES (as the shielding of the outer electrons remains almost constant) pulling the electrons closer to the nucleus and DECREASING the size of the atom." (More)
Question
Expert Answered
Asked 11/4/2011 8:36:00 AM
0 Answers/Comments
17,188,623 questions answered
Popular Conversations
Indicate whether the statement is true or false. The reason a penny ...
Weegy: TRUE - The reason a penny thrown straight up inside an airplane will come back to your hand is that you, the air ...
8/31/2014 3:31:31 PM| 4 Answers
A line passes through the points (-10, -4) and (-1,2). What is the ...
Weegy: A line passes through the points (-10, -4) and (-1,2). The y-intercept of the line is 8/3. The equation of the ...
8/31/2014 11:50:10 AM| 3 Answers
India is a subcontinent and consists of all of the following except. ...
Weegy: Indian subcontinent has all the features , valleys in himalayan mountains , deccan plateaus , thar desert , and ...
8/31/2014 11:02:13 AM| 2 Answers
Market economy. User: Command economy.
8/31/2014 8:31:19 PM| 2 Answers
Consider this quote: "In each of these historical instances . . . ...
Weegy: D. it stands for the omission of only a single word. User: Which of the following statements correctly ...
9/1/2014 8:30:28 AM| 2 Answers
Which of the following is least likely to form ...
Weegy: Helium is least likely to form bonds. User: Which of the following is an example of plasma? the atmosphere ...
8/31/2014 12:42:25 AM| 1 Answers
Weegy Stuff
S
L
1
L
Points 112 [Total 6645]| Ratings 0| Comments 112| Invitations 0|Offline
S
L
C
P
C
1
L
L
Points 72 [Total 16011]| Ratings 0| Comments 72| Invitations 0|Offline
S
R
L
1
1
P
C
1
P
1
1
L
P
C
P
C
1
P
C
L
P
C
1
P
C
P
C
Points 70 [Total 24470]| Ratings 0| Comments 70| Invitations 0|Online
S
L
P
C
L
P
C
P
C
L
P
C
P
C
P
C
Points 24 [Total 17196]| Ratings 0| Comments 24| Invitations 0|Online
S
Points 20 [Total 20]| Ratings 0| Comments 0| Invitations 2|Offline
S
L
P
C
P
C
1
L
P
C
L
P
C
P
C
P
C
P
C
Points 18 [Total 18549]| Ratings 0| Comments 18| Invitations 0|Offline
S
Points 13 [Total 683]| Ratings 0| Comments 13| Invitations 0|Offline
S
Points 11 [Total 69]| Ratings 1| Comments 1| Invitations 0|Offline
S
1
L
1
L
P
P
L
Points 10 [Total 11256]| Ratings 0| Comments 10| Invitations 0|Offline
S
L
1
1
1
1
L
1
Points 6 [Total 9786]| Ratings 0| Comments 6| Invitations 0|Offline
Home | Contact | Blog | About | Terms | Privacy | Social | ©2014 Purple Inc.