All of the elements after atomic number______ are artificial and do not exist in nature.
A) 57
B) 89
C) 92
D) 104
Correct Answer:
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Q33: In an atom, which particles are most
Q34: Identify the element that contains the following
Q35: Write the name and symbol for the
Q36: Identify the element that contains the following
Q37: Incandescent light bulbs
A)have not been produced since
Q39: Isotopes of an element differ in the
Q40: An "EMR blocker" blocks
A)electrons making rays.
B)electromagnetic radiation.
C)exceptional
Q41: Electrons can be promoted from a low
Q42: Which statement is true?
A)High energy electromagnetic radiation
Q43: An atom of a particular element is
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