Atoms and Periodic Table Quiz

What is the smalled unit of matter that can be broken down and still keep its chemical makeup?

• Proton
• Neutron
• Atom
• Electron

Who developed the first atomic theory that all matter is made up of atoms that cannot be created, divided or destroyed?

• Dmtri Mendeleev
• JJ Thomson
• Niels Bohr
• John Dalton

Tags

NGSS.HS-PS1-7

Who discovered that atoms have negatively charged particles that were later called electrons?

• Niels Bohr
• JJ Thomson
• John Dalton
• Ernest Rutherford

Which scientist discovered that atoms have a nucleus and that the nucleus contains particles called protons?

• Ernest Rutherford
• JJ Thomson
• John Dalton
• Niels Bohr

Which scientist discovered that atoms have neutrons and that electrons are part of an electron cloud?

• JJ Thomson
• John Dalton
• Niels Bohr
• James Chadwick

What is the symbol for the unified atomic mass unit?

• amu
• a
• u
• m

What charge does a neutron have?

• +
• -
• 0
• None of these

What type of charge does an electron have?

• +
• -
• 0
• All of these

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

A ______________ is a subatomic particle that is found in the nucleus of an atom and has a positive charge.

• Proton
• Neutron
• Electron
• All of these

What two subatomic particles make up the nucleus of the atom?

• Protons and Electrons
• Electrons and Neutrons
• Neutrons and Protons
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