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OpenStudy (anonymous):
What are two pairs of elements that are not arranged by increasing atomic mass when arranged by increasing atomic number.
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OpenStudy (anonymous):
whats the modern atomic law too?
OpenStudy (shreehari499):
Hi! @dahomie ! Modern atomic theory is also called Bohr's Thory. It states that the electrons are arranged in concentric circular orbits around the nucleus.
OpenStudy (shreehari499):
For the first qn, did u mean an example?
OpenStudy (anonymous):
yes I believe the answer is Cobalt and Nickel; Lawrencium and Rutherfordium thx for youre help too @shreehari499 !!!
OpenStudy (shreehari499):
Hmm...yeah..anytime!
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