![schoolboyq3017](/avatars/37752.jpg)
schoolboyq3017
27.06.2019 •
Chemistry
Brainliesttt !me : ) describe chadwick’s work in chemistry.
Solved
Show answers
More tips
- S Style and Beauty How to Choose the Perfect Hair Color?...
- C Computers and Internet Best iPad Games: Our Opinion...
- A Animals and plants Man s Best Friend: Which Dog Breed Is the Most Friendly?...
- H Health and Medicine 10 Simple Techniques on How to Boost Your Mood...
- G Goods and services How to Choose the Right High Chair for Your Baby?...
- S Style and Beauty Learn how to tie a keffiyeh on your head like a pro...
- S Style and Beauty How to braid friendship bracelets?...
Answers on questions: Chemistry
- C Chemistry A block is pulled 0.90 m to the right in 3.75 s. What is the block’s average speed to the nearest hundredth of a m/s?...
- C Chemistry Which type of bond will likely form between calcium and iodine? ionic bond polar covalent non polar covalent metallic...
- C Chemistry How many moles are in 1.93x1023 particles of Na3PO4?...
- C Chemistry How do the positive and negative played contribute ?...
- M Mathematics Abc is similar to dec find the length of x. the length of side x is m...
- M Mathematics The point (0, -5) is a solution to -4x + y = 10 true or false...
- S Spanish Make the following word pluralun reloj unos relojes un relojes el relojes los relojs...
- B Business Economic government matching card game there are 10 matches1. and barter system 2. rule by small group of people 3....
- M Mathematics Amobile phone company charges £12 per month for its mobile phones. plus 6 pence per minute for phone calls made. what is the charge in a month where a woman makes 500 minutes of...
- E English Which statement accurately describes a method the author is using to persuade his audience? a) the author presents his position as a rational compromise between two extreme positions....
Ответ:
Sir James Chadwick was the scientist who discovered the neutron. The electron and proton had already been found but with the neutron known, we knew everything that made up our universe. He won the 1935 Nobel Peace Prize for his discovery.
Ответ:
Here's what I get.
Explanation:
James Chadwick is best known for his discovery of the neutron in 1932.
Earlier research
Before 1932, the only subatomic particles known were the electron and the proton. Scientists thought that the nucleus contained both protons and electrons.
For example, they thought a helium atom contained four protons and two electrons, with two electrons orbiting the nucleus.
In 1928, German physicists discovered that beryllium nuclei, when bombarded with α particles, emitted a strange type of extremely energetic radiation. It had no charge, because it wasn't deflected by electric or magnetic fields. Neither was it γ-rays, because it did not discharge an electroscope.
In 1932 Irène and Frédéric Joliot-Curie discovered that the radiation knocked protons loose from paraffin, and they could be detected by a Geiger counter. They, too, thought the radiation was some type of strange γ-rays .
Chadwick's work
Chadwick did not believe their explanation.
He quickly repeated their experiments with paraffin and also used other substances as targets.
He couldn't observe the uncharged radiation directly, but he could count the protons and measure their energies as they were ejected from the targets.
By working backwards and using the laws of conservation of energy and momentum, Chadwick concluded that the radiation must consist of neutral particles with a mass 1.0067 times that of a proton.
He had discovered the neutron.
Ответ:
Aluminum is very rare in its free form. Aluminum contribute greatly to the properties of soil, where it is present mainly as insoluble aluminum hydroxide. Aluminum is a reactive metal and it is hard to extract it from its ore, aluminum oxide (Al2O3).
mark brainliest :)