2.2 The Development of Atomic Model

He discovered the neutron in the nucleus and completed the current atomic model.

• J.J. Thomson
• Ernest Rutherford
• Niels Bohr
• James CHadwick

He found that atoms have smaller parts and found negative electrons that he theorized were surrounded in a sphere of positive charges

• J.J. Thomson
• Ernest Rutherford
• Niels Bohr
• James Chadwick

He found the positively charged protons in the nucleus and said that electrons moved around the nucleus

• J.J. Thomson
• Ernest Rutherford
• Niels Bohr
• James Chadwick

He found that electrons have specific amounts of energy and move in specific orbits around the nucleus, like planets orbiting the sun. 

• J.J. Thomson
• Ernest Rutherford
• Niels Bohr
• James Chadwick

Which of the following was not part of John Dalton's theory of an atom?

• Matter can be created and destroyed
• All atoms of the same element are exactly alike
• Every compound is composed of atoms of different elements in a specific ratio
• All elements are composed of atoms that can not be divided

According to Ernest Rutherford, an atom is made of mostly....

• empty space
• electrons
• the nucleus
• protons

The atomic particle with no charge is the...

• proton
• neutron
• electron
• nucleus

The atomic particle with a positive charge is the...

• proton
• neutron
• electron
• nucleus

The atomic particle with a negative charge is the...

• proton
• neutron
• electron
• nucleus

The smallest part of the element with the properties of the element is the...

• electron
• quark
• atom
• proton