Which trait would most likely lead scientists to investigate folk remedies of tribes living in rain forest for new medicine

Consider the two electron arrangements for neutral atoms a and b. are atoms a and b the same element? a - 1s2, 2s2, 2p6, 3s1 b - 1s2, 2s2, 2p6, 5s1

The modern periodic table has groups.

The atomic number, or number, is the described as the number of in the nucleus of an chemical element.