Describe subatomic particles and the nuclear atom, Chemistry

Assignment Help:

Q. Describe Subatomic Particles and the Nuclear Atom?

One of the most significant results of Dalton's theory was that it generally persuaded scientists that atoms exist. As a result scientists start research to discover the exact nature of the atom.

Finding of electrons Experiments around the turn of the twentieth century provided evidence that the atom consists of smaller particles. When J. J. Thomson applied a high voltage to two electrodes sealed in an evacuated tube an invisible beam or ray was found to emanate from the negative electrode (cathode) of the tube and travel toward the positive electrode (anode). The path of the ray could be made visible by the glow it caused when it passed across a plate coated with fluorescent material. The beam called a cathode ray could be deflected by electric and magnetic fields.


Related Discussions:- Describe subatomic particles and the nuclear atom

Extraction of copper , how many process there are to extracte copper from c...

how many process there are to extracte copper from copperpyrites/

Show the basic definitions of coordination compounds, Q. Show the Basic Def...

Q. Show the Basic Definitions of coordination compounds? Some of the terms which we use in connection with coordination compounds carry specific meaning and thus form a kind of

Various steps required for making water suitable , Q.   Name the various st...

Q.   Name the various steps required for making water suitable for domestic use. Ans. Treatment process for domestic use S . No . Process use for tr

Oxidation/Reaction, Write a list of reduction half reactions for... Fe, Fe+...

Write a list of reduction half reactions for... Fe, Fe+3 Cu, Cu+1 Pb, Pb+2

Metallurgy, Ask question #Minimum 1000! words accepted#

Ask question #Minimum 1000! words accepted#

Why carboxylate salts less reactive than esters, Carboxylate salts Car...

Carboxylate salts Carboxylate salts are less reactive than esters in nucleophilic acyl substitution reactions for two reasons.  First, resonance stabilization of carboxylate s

Donor and acceptor properties, Most polar solvents have Lewis base or donor...

Most polar solvents have Lewis base or donor properties resulting from lone-pair electrons. Good donor solvents inbuilt water, pyridine and ammonia, and are efficient at solvating

Explain phenomenon called reverse osmosis, Name a substance which on additi...

Name a substance which on addition to AgCl causes vacation vacancy in it. Mention a large scale use of the phenomenon called 'reverse osmosis'.

S block, what is the first maximum innaisation energy metal in s block

what is the first maximum innaisation energy metal in s block

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd