What is the state of matter that consists ohf a gas-like mixture of free electrons and nuclei of atoms that have been stripped of electrons?
solid
liquid
plasma
gas
3
1
In the sun, two isotopes of hydrogen fuse to produce what element?
Hydrogen
Oxygen
Helium
None of the above
4
1
What element has 47 protons in its nucleus?
Carbon
Hydrogen
Silver
Seaborgium
5
1
What is the process that produces elements in Stars?
photosynthesis
nuclear fusion
decomposition
nuclear fission
6
1
How many electrons does Magnesium have?
35
2
24
12
7
1
What group on the periodic table does Helium belong to?
Alkali metal
Metal
Halogen
Noble gas
8
1
What is the symbol for Copper?
Zn
Cu
Au
Co
9
1
Where are elements heavier than iron produced?
liquid
supernova
nuclear fission
none of the above
10
1
Stars turn lighter elements into ____________
lighter elements
heavier elements
dark
none of the above
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