Atomic Theories

"Everything is composed of atoms" was stated by:

• Democritis
• Dalton
• Moseley
• Einstein

John Dalton stated:

• elements are made of atoms
• atoms of a given element are identical
• atoms cannot be subdivided, created, nor destroyed
• all of the above

The scientist responsible for "discovering" the nucleus is:

• Bohr
• Rutherford
• Schroedinger
• Einstein

The scientist responsible for "discovering" the nucleus is:

• Bohr
• Rutherford
• Schroedinger
• Einstein

The nucleus of an atom can be described as:

• spacious and negatively charged
• dense and positively charged
• spacious and positively charged
• dense and negatively charged

What does the nucleus of an atom contain?

• Electrons and neutrons
• Protons and neutrons
• Neutrinos and positrons
• DNA and RN

The word "atom" comes from a Greek word that means

• Invisible
• Indivisible
• Undivided

Electrons can be found in

• The protons
• The nucleus
• Electron Clouds

The positively charged particles of an atom are the ________.

• electrons
• protons
• neutrons
• protons & neutrons

What is at the center of every atom?

• An electron
• A compound
• A molecule
• A nucleus