G5 Chemistry Quiz 0529

Which two particles are in the nucleus?

• Proton

• Isotope

• Electron

• Neutron

The atomic number is the number of....

• Protons

• Neutrons

• Protons and neutrons

• Atoms

The mass number is the number of...

• Electrons and protons

• Protons, electrons and neutrons

• Atoms

• Neutrons and protons

How many protons in an atom of Helium?

• 2

• 3

• 4

• 1

An element contains...

• a mixture of atoms

• only one type of atom

• one atom

• oxygen

True or False: Neutrons have a negative charge

• True

• False

electrons have this type of charge?

• negative
• positive
• neutral

What is the overall charge of this atom?

• +3
• -3
• 0
• +1

Another example of a mixture is 

• Water and oil
• Cereal and Milk 
• Sand and water 
• All of the above

If an atom has 24 protons and 24 electrons, what is the atomic number of this element?

• 24
• 48
• 0
• 42