## How many copper atoms would you have to line up to form a line 1m long?

Answer: If you could line up 100,000,000 copper atoms side by side, they would produce a line only 1 cm long!!

## How many protons are in 7 copper atoms?

This means that the copper atom has 29 protons and 34 neutrons in its nucleus (29 + 34 = 63). A neutrally charged copper atom will then have 29 electrons in orbit around its nucleus (29 − 29 = 0)….

atom/element copper (Cu) 63 29 34 29

## How many millions of atoms would it take to form a line just 1 cm long?

fifty million atoms

## How do you calculate AMU?

For any given isotope, the sum of the numbers of protons and neutrons in the nucleus is called the mass number. This is because each proton and each neutron weigh one atomic mass unit (amu). By adding together the number of protons and neutrons and multiplying by 1 amu, you can calculate the mass of the atom.

## What is 1 amu or 1u?

1 amu or 1 atomic mass unit is equals to the 1/12 of the mass of a carbon atom. U is the standard unit of measure for designating the vertical usable space, or height of racks (metal frame designed to hold hardware devices) and cabinets (enclosures with one or more doors).

nucleus

## When was JJ Thomson born and died?

Thomson, in full Sir Joseph John Thomson, (born December 18, 1856, Cheetham Hill, near Manchester, England—died August 30, 1940, Cambridge, Cambridgeshire), English physicist who helped revolutionize the knowledge of atomic structure by his discovery of the electron (1897).

## What scientists did JJ Thomson work with?

He left research in 1918 to become Master of Trinity College. He died in Cambridge on August 30, 1940, and is buried in Westminster Abbey near two other influential scientists: Isaac Newton and Charles Darwin.

## What did JJ Thomson think the atom looked like?

William Thomson (also known as Lord Kelvin) envisioned the atom as a sphere with a uniformly distributed positive charge and embedded within it enough electrons to neutralize the positive charge.

## Why did JJ Thomson get a Nobel Prize?

The Nobel Prize in Physics 1906 was awarded to Joseph John Thomson “in recognition of the great merits of his theoretical and experimental investigations on the conduction of electricity by gases.”

## What discovered Dalton?

Although a schoolteacher, a meteorologist, and an expert on color blindness, John Dalton is best known for his pioneering theory of atomism. He also developed methods to calculate atomic weights and structures and formulated the law of partial pressures.

## What is the contribution of JJ Thomson?

A series of experiments with cathode rays he carried out near the end of the 19th century led to his discovery of the electron, a negatively charged atomic particle with very little mass. Thomson received the Nobel Prize in Physics in 1906 for his work exploring the electrical conductivity of various gases.

## Who is the son of JJ Thomson?

George Paget Thomson

Eugene Goldstein

## Who is father of nucleus?

Ernest Rutherford

## What is the full name of JJ Thomson?

Joseph John Thomson

## What name is given his model?

The Rutherford model is a model of the atom named after Ernest Rutherford. Rutherford directed the famous Geiger-Marsden experiment in 1909, which suggested, according to Rutherford’s 1911 analysis, that J. J.

1897

## What is the theory of JJ Thomson?

J.J. Thomson’s experiments with cathode ray tubes showed that all atoms contain tiny negatively charged subatomic particles or electrons. Thomson’s plum pudding model of the atom had negatively-charged electrons embedded within a positively-charged “soup.”