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- 1. Multiple ChoiceWhich element has 31 protons ?GalliumGermaniumGadoliniumPolonium
- 2. Multiple ChoiceWhich statement best describes an electron?Smaller mass than a proton and a negative chargeSmaller mass than a proton and a positive chargeGreater mass than a proton and a negative chargeGreater mass than a proton and a positive charge
- 3. Multiple Choice
What number indicates the nucleus?1234 - 4. Multiple ChoiceWhich two particles make up the nucleus of an atom?Protons and ElectronsProtons and NeutronsMolecules and CompoundsNeutrons and Electrons
- 5. Multiple ChoiceMost of the atom is filled withelectronsempty spacethe nucleusprotons
- 6. Multiple ChoiceHow many electrons are in the element, Oxygen, with the atomic number of 8?71089
- 7. Multiple Choice
All matter is made of
energy
electrons
atoms
compounds
- 8. Multiple Choice
The central region of an atom where its neutrons and protons are is its
nucleus
core
electron cloud
centre
- 9. Multiple ChoiceThe particles with no charge in an atom are the _______.electronsneutronsprotonsprotons and neutrons
- 10. Multiple Choice
What is the relative charge of an electron?
1
Neutral
-1
- 11. Multiple ChoiceWhat is the mass number?the number of protonsthe sum of the number of protons and the number of neutrons in the nucleus of an atomthe number of electronsthe number of neutrons
- 12. Multiple Choice
What element has only one electron?
Helium
Carbon
Lithium
Hydrogen
- 13. Multiple Choice
What is group 18 on the periodic tabled called?
Alkali metals
Noble gases
Halogens
Alkaline earth metals
- 14. Multiple ChoiceWhat is the number of protons that the element in this image contain?1471518
- 15. Multiple Choice
What goes in place of the question marks?
Element name
Atomic Mass
Atomic Number
Electrons
- Answer choicesTagsAnswer choicesTags