Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. Composition of the nucleus
Since the time of Rutherford, other scientists have learned a significant amount about the fundamental properties about the nucleus of an atom. In particular, they were able to discover that the nucleus was composed of fundamental particles called protons and neutron.
The Proton
In an experiment where he used a modified cathode-ray tube, Thompson realized that there were rays traveling in a direction opposite to that of the negative cathode-rays made up of electrons. Thompson showed that these rays were composed of positively-charged particles that have the same amount of electrical charge, but of opposite sign, as electrons. These particles were eventually given the name of protons.
The Neutron
Scientists were confused as they realized that the total mass of the atom was more than just the sum of the masses of the protons and electrons. They suspected that the atom contained a third type of subatomic particle that contributed to the atomic mass.
However, as this particle did not have an electrical charge, and therefore was neutral, it was more difficult to detect that the electron and proton. In 1932, an English scientist named James Chadwick showed that an atom contains a third kind of subatomic particle which he called a neutron. A neutron has about the same mass as a proton and is also found in the nucleus of the atom. However, unlike the proton, the neutron does not have an electric charge.
COMPOUNDS A AND B CONTAIN COPPER AND SULPHUR.EACH CONTAINS 20% AND 33.33% EACH BY MASS OF SULPHUR RESPECTIVELY.FIND THE RATIO OF THE ELEMENTS USING THE THIRD LAW OF CHEMICAL COMBIN
Digestion of food Digestion is the procedure through which complex constituents of food are broken down into simple molecules by a number of enzymes in mouth, stomach, and smal
REVERSIBLE CELLS AND IRREVERSIBLE CELLS DEFINITION, TYPES, CLASSIFICATION, REACTION AND DIFFERENCES
explain the difference between singlet and triplet carbenes, demonstrate with examples
Ask question #LIMITATIONS OF VBT AND VSEPR
I have a question on hydrophobicity. I have a product called Neverwet that creates a hydrophobic surface on stuff. There''s a base and top spray. The top spray thats mainly acetone
ELECTROCHEMICAL THERMODYNAMICS Notation: To avoid repetitive drawing of complicated cells diagram, a common notation has been adopted for cells. All electrical contacts
1. Express 95 mg/l of Ca 2+ as milligrams per liter of CaCO 3 . 2. Express 221 mg/l of Ca(HCO 3 ) 2 as equivalents per liter of CaCO 3 . 3. Determine the concentration o
Average life of a radioelement is the characteristics property of the element. Explain
Atoms in the water molecule are linked by: (1) Electrovalent bond (2)Covalent bond (3) Coordinate covalent bond (4) Odd electron bond Ans: Cov
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd