what patterns do you notice in the groupings of elements within the periodic table?

Question

anonymous · Answer

same column = share similar characteristics

anonymous · Answer

can you go more in-depth please.

kainui · Answer

Every time you go across a row you will find that it repeats itself in the properties of the atoms. Lithium, Sodium, and Hydrogen for example all have a +1 charge generally. All the noble gasses are non-reactive. Since it repeats, just like the sun predictably goes around the earth for day and night (humor me here) we call this the periodic table.

A period in terms of our solar system is the amount of time it takes the earth to go completely around the sun one time. A period just means one full rotation or movement back to the start, so for instance, the period of a pendulum is the time it takes to swing all the way back and forth to the place it started.

anonymous · Answer

within a row the energy level doesnt change