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Who discovered the indivisible solid sphere model?
The indivisible solid sphere model, also known as the billiard ball model of the atom, was proposed by John Dalton in the early 19th century. He suggested that atoms are indivisible spheres that make up all matter and that they combine in simple whole number ratios to form compounds.
Who is JJ Thomson and what did he discover about the atom?
1st Experiment: He constructed a Cathode Ray and concluded that the negative charge was inseparable from the rays. 2nd Experiment: He investigated whether or not the rays could be deflected by an electric field. He found that the rays really did bend, which indicated a negative charge. 3rd Experiment: He measured the charge-to-mass ratio of the cathode rays by measuring how much they were deflected by a magnetic field and how much energy they carried. He concluded that cathode rays were indeed made of particles which he called "corpuscles." These were later named electrons. Scientific Contributions: · Thompson created the first model that suggested positive and negative charges known as the "plum pudding" model. Thompson discovered that electrons were subatomic particles
Significance of joule Thomson effect?
The Joule-Thomson effect describes the change in temperature of a gas when it expands or is compressed without the addition or removal of heat. This effect is used in refrigeration and liquefaction processes. It is also important in understanding real gas behavior and can be applied in the design of processes in chemical engineering.
Who discovered the empirical formula?
The concept of empirical formula was developed by French chemist Joseph Louis Gay-Lussac in the early 19th century. He found that chemical compounds have consistent ratios of elements that can be expressed in simple whole numbers, leading to the concept of empirical formula.
What madam curie invented?
Madame Curie was a pioneering scientist who discovered the radioactive elements polonium and radium. She conducted groundbreaking research on radioactivity and its potential medical applications, ultimately leading to her winning two Nobel Prizes in Physics and Chemistry.
What is the simple past of discover?
The simple past of "discover" is "discovered."
What simple machine did Archimedes discover?
Archimedes discovered/identified the lever, the pulley, and the screw as simple machines.
Why is simple disk striping not fault-tolerant?
if one disk fails,data contained on that disk is unavailable
What is the prokaryotes definition?
A simple organism without nucleus: an organism whose DNA is not contained within a nucleus
Who discovered first robot?
Robotic devices were not "discovered", instead, automation has slowly evolved from simple devices to the computer controlled devices that we have today.
How can you write this sentence in past perfect tense the conclusions are contained in the agency's latest report'?
The conclusions are contained in the agency's latest report.This sentence is a passive sentence, a present simple passive sentence. The verb phrase is - are contained = be verb + past participle.Past perfect passive sentence:The conclusions had been contained in the agency's latest report.
Who discovered electron cell?
The concept of the electron was first proposed by J.J. Thomson in 1897 through his experiments with cathode rays. Thomson's work laid the foundation for our understanding of the basic building blocks of atoms.
Who discovered the indivisible solid sphere model?
The indivisible solid sphere model, also known as the billiard ball model of the atom, was proposed by John Dalton in the early 19th century. He suggested that atoms are indivisible spheres that make up all matter and that they combine in simple whole number ratios to form compounds.
What type of discounts does the Thomson Travel Agency provide during the holiday seasons?
Thomson Travel Agency offers many holiday packages for adults, families, luxury, and specialist holidays. Featured collections include all inclusive, chic and unique, simple travel, and sky tour packages.
What was Robert hookes mast famous discovery?
He first discovered the cell with his simple microscope.
The scientist who first discovered cells as seen through a simple microscope was?
Van Leeuwenhoek.
What does discovering polonium and radium mean?
The simple meaning is that new chemical elements were discovered.
