Atomic Theory (Beginning)

Which subatomic particles has a negative charge?

• Electrons

• Neutrons

• Protons

• Quarks

The smallest particle of an element that shows all the properties of that element.

• Subatomic Particles
• Atom
• Quarks
• Gluons

Tags

NGSS.MS-PS1-1

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

• Electron Shells
• Orbitals
• Electron Cloud
• Nucleus

Tags

NGSS.HS-PS1-8

Discovered the nucleus of the atom through the Gold Foil Experiment

• Rutherford
• Chadwick
• Thomson
• Dalton

Tags

NGSS.HS-PS1-8

Believed that atoms of the same element are identical to each other

• Bohr
• Rutherford
• Dalton
• Thomson

Who stated that atoms cannot be divided?

• Democritus

• Dalton

• Thomson

• Bohr

Which subatomic particle has a positive charge?

• neutrons

• atomic mass

• protons

• isotopes

Which subatomic particle has a neutral charge?

• Neutrons

• Protons

• Nucleus

• Electrons

These particles are found in the nucleus

• protons and electrons

• nucleus and neutrons

• protons and neutrons

• electrons and neutrons

Tags

NGSS.HS-PS1-8

Which element has 33 protons?

• Arsenic (As)

• Sulfure (S)

• Chlorine (Cl)

• Bromine (Br)