They are pretty much the cause and effect. The independent variable that is being changed in the experiment, so it is the cause. The dependant variable is the result of change the independant variable, so the effect.
Answer is: elements in the same group have similar chemical properties.
Periodic law<span> is the arrangement of the </span>elements<span> in order of increasing atomic number.
</span>For example all alkaline metals (I group of periodic table, Na, K, Cs...) loose one electron in chemical reaction and react vigorously with water.
Answer:
Explanati4 ELECTRONS ARE IN THE OUTERMOST SHELL
on:
This is how earth look like 255 years ago
(True) <span>Organisms belonging to the same species can mate and produce fertile offspring</span>
