Atomic Structure

These particles are found in the nucleus of the atom.

• protons only

• protons and electrons

• electrons only

• protons and neutrons

Which subatomic particle has a negative charge?

• proton

• electron

• neutron

• quark

Value representing the number of protons in an element

• Atomic Mass
• Mass Number
• Valence Electrons
• Atomic Number

Which subatomic particle has a positive charge and is found inside the nucleus?

• Electron

• Proton

• Neutron

• Nucleus

What part of the atom gives us the identify of the atom?

• proton

• neutron

• electron

Person that discovered electrons using the cathode ray experiment. He created the plum pudding model

• Neils Bohr

• Ernest Rutherford

• JJ Thomson

• Dmitri Mendeleev

JJ Thomson's theory was nicknamed _______.

• Billiard Ball Theory
• Solar System Theory
• Electron Cloud
• Plum Pudding

He developed the planetary model of the atom.

• Rutherford
• Bohr
• Chadwick
• Dalton

This scientist performed the Cathode Ray Tube experiment and proposed the Plum Pudding Model of the atom

• Dalton
• Chadwick
• Thomson
• Democritus

An element with 3 protons in each atom has an atomic number of:

• 1

• 2

• 3

• 4