How can we use patterns on the periodic table to predict an element’s structure and reactivity?

The atomic number of an element which gives it valency.

From the valency, we get the ionic charge.

The greater the ionic charge, the greater the reactivity.

the dna of humans and mice is almost 92% similar. this similarity indicates that . mice have a tail, while humans have a tailbone. the tailbone is a structure in humans.yes it's true.

a chain link fence because there so tiny even my albino donkey can't get out