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- 1. Multiple ChoiceWhich part of an atom is POSITIVELY charged?protonsneutronselectronsatoms
- 2. Multiple ChoiceWhat part of an atom is NEGATIVELY charged?protonsneutronselectronsatoms
- 3. Multiple ChoiceWhich part of an atom has no charge?protonsneutronselectronsatoms
- 4. Multiple Choice
The mass of an atom is found by adding its protons and _______.
electrons
nuetrons
nucleus
- 5. Multiple Choice
The mass number of iodine is 126, and it’s in the 53rd place in the periodic table. It has ________________ protons and ______________ neutrons.
126 protons and 53 neutrons
53 protons and 126 neutrons
53 protons and 73 neutrons
73 protons and 53 neutrons
- 6. Multiple Choice
The atomic number of krypton (Kr) is 36, and its mass number is 84. How many neutrons does it have?
18
36
48
72
- 7. Multiple Choice
Identify the model
Thomson model
Dalton model
Bohr Model
Rutherford model
- 8. Multiple ChoiceWhat does the nucleus of an atom contain?Electrons & NeutronsProtons & NeutronsNeutrinos & Positrons
- 9. Multiple ChoiceWhat are electrons?Massive, positively charged particlesTiny, negatively charged particlesClouds of dust in the nucleusNeutral particles around the nucleus
- 10. Multiple ChoiceWhich subatomic particles contribute the most to the mass of an atom?Protons, Neutrons, ElectronsProtons onlyProtons and ElectronsProtons and Neutrons
- 11. Multiple ChoiceWhat is the number of protons that the element in this image contain?1471518
- 12. Multiple ChoiceIf an atom has 12 positively charged subatomic particles, which of the following must it also have to be considered a neutral atom?12 neutrons12 electrons12 protons24 protons and neutrons
- 13. Multiple ChoiceAn atom has 10 protons, 15 neutrons and 10 electrons what is its mass number.2010525
- 14. Multiple ChoiceAn element with a mass number of 11 and an atomic number of 5 has how many neutrons?115616
- 15. Multiple ChoiceThe mass of one proton is greater than the mass of one...neutronelectron
- 16. Multiple ChoiceWhich letter represents the nucleus?ABDE
- 17. Multiple ChoiceWhich letter represents an electron?ABCD
- 18. Multiple ChoiceWhich letter represents a neutron?ABCD
- 19. Multiple ChoiceWhich letter represents a proton?ABCD
- 20. Multiple ChoiceWhat is the atomic mass of the atom pictured?9101819
- 21. Multiple ChoiceWhat is the atomic number of the atom pictured?9101819
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