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5. The mass number of magnesium is 24, therefore, magnesium atom has
a. 12 protons and 12 electrons
b. 12 electrons and 12 neutrons
c. 12 protons and 12 neutrons
d. 24 protons and O neutrons
6. The element technetium has an atomic number of
b. 45
c. 93
d. 94
7. What is the element discovered by Edwin McMillan?
a. Technetium b. Plutonium c. Neptunium d. Uranium
8. The particle accelerator is used to synthesize new elements, which of the following pa
correct match?
a. Linear particle accelerator to technetium
b. Fast moving alpha particle to plutonium
c. Cyclotron particle accelerator to uranium
d. Chemical particle accelerator to neptunium
9. A particle that is composed of a proton and neutron.
a. Cyclotron b. Dendeteron c. Deuteron d. Celeron
10. Which of the following elements is belong to the family of transuranium elements?
a. Carbon b. Technetium c. Molybdenum d. Plutonium​