Periodicity is best defined as:

the fact that elements increase in atomic mass in a regular way
the repeating nature of physical and chemical properties with increasing atomic number
the regular growth of atomic size with atomic mass
the consistent decrease of nuclear charge with atomic mass
the repeating nature of atomic nuclear structure

Question

Periodicity is best defined as:


the fact that elements increase in atomic mass in a regular way
the repeating nature of physical and chemical properties with increasing atomic number
the regular growth of atomic size with atomic mass
the consistent decrease of nuclear charge with atomic mass
the repeating nature of atomic nuclear structure

wolfe8 · Answer

Welcome to OpenStudy. Do you know what the period means? It means that there is a repeating pattern. What is that pattern for elements?

wolfe8 · Answer

This should help: http://www.learner.org/interactives/periodic/basics_4_periodicity.html

anonymous · Answer

i was thinking that it was the last one. i just don't know,

wolfe8 · Answer

Well if you look at the periodic table, elements in a group have the same chemical properties and we can also see patterns on the physical properties. Sorry I can't explain so well. It's late for me.