what property of the elements is considered
when attanging the elements in the periodic
table?
in which direction on the periodic table,

List four observations that indicate that a chemical reaction may be taking place

Question 3(multiple choice worth 4 points) (04.04 lc) what does it mean when an element is reduced? it empties a valance shell, reducing its atomic radius. it gains electrons, reducing its overall charge. it increases electronegativity, reducing its ability to bond. it loses electrons, reducing its electron number.

What is a number added in front of a formula in order to balance the equation