CH 5 Test - chemistry

Subatomic particle that has a negative charge and is located outside of the nucleus.

• Electron
• Proton
• Neutron
• Voltron

True or False: All matter is made up of atoms.

• True
• False

What subatomic particle, if altered, changes the name of the atom?

• Neutron
• Proton
• Voltron
• Electron

What two particles affect the charge of an atom?

• Electrons & Neutrons
• Protons & Electrons
• Neutrons & Protons
• all of the above

What does the nucleus of an atom contain?

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

The positive particles of an atom are 

• electrons 
• positrons 
• neutrons 
• protons 

Contributes no mass to an atom.

• protons
• neutrons
• electrons
• protons and neutrons

Who stated that all atoms of the same element are exactly alike?

• Democritus
• Dalton
• Thomson
• Borh

What contribution did John Dalton make to atomic theory? 

• He discovered that every atom was positively charged. 
• He discovered that every element consisted of one type of atom.  
• He discovered that atoms had nuclei. 
• He discovered that atoms could be divided into smaller parts. 

What element is pictured?
(you will need to look at periodic table on the wall)

• Hydorgen
• Boron
• Beryllium
• Arsenic