Atomic strucutre

What is the atomic mass of Neon?

• 10

• 20

• 30

• 20.179

What is one way Neutrons are different from electrons?

• they both are negative

• neutrons have no charge, while electrons have a negative charge

• Both are in the nucleus( center of atom)

• Electrons are inside nucleus and neutrons are outside the nucleus.

The smallest particle of an element.

• Element

• Molecule

• Atom

A tiny but very dense, positively charged portion of the atom that holds most of the atomic mass

• Protons

• Orbitals
• Electron Cloud
• Nucleus

Where electrons are likely to be found as they travel around the nucleus

• Nucleus
• Electron Cloud
• Within a Proton
• Within a Neutron

•What particle is made up of two 'down' quarks and one 'up' quark?

• •Atom

• • Electron

• • Neutron

• • Proton

• • Tachyon

Who was the first person credited with studying atomic theory?

• Dalton

• Democritus

• Chadwick

• Miller

Earth, Air, Fire, and Water were the fundamental elements proposed by ___.

• Aristotle

• Democritus

• Plato

• Galileo

Which Scientist said, matter made of atoms that can not be created or destroyed

• Democritus

• Aristotle

• John Dalton

• JJ. Thompson

What subatomic particles did James Chadwick discover?

• protons. 

• neutrons

• electrons

• quarks