PhyScie - SW#2

How many neutrons does a Tungsten have if the mass number is 105?

• 26

• 31

• 74

• 59

How many neutrons does a Tin have if the mass number is 100?

• 50

• 60

• 70

• 80

How many neutrons does a Bismuth have if the mass number is 164?

• 53

• 69

• 74

• 81

What is the mass number of Gold if it has 53 neutrons?

• 104

• 117

• 128

• 132

What is the mass number of Barium if it has 87 neutrons?

• 137

• 143

• 153

• 160

These are elements with atomic numbers beyond 103.

• Superheavy Elements

• Gases Elements

• Lightest Elements

• Halogens

He created a classification of elements based on their atomic weight.

• Rutherford

• Dalton

• Millikan

• Mendeleev

He noticed that shooting electrons at elements caused them to release x-rays at unique frequencies.

• Mendeleev

• Millikan

• Moseley

• Serge

It was created by bombardment of Molybdenum by deuterons (heavy Hydrogen, H12), by Emilio Segre and Carlo Perrier in 1937.

• Oxygen

• Helium

• Technetium

• Uranium

He synthesized element with atomic number 43 using a linear particle accelerator.

• Ernest Rutherford

• Ernest Lawrence

• Dmitri Mendeleev

• John Dalton