Huh? This is confusing 30 points make sure you know what your about to say, so don't add random answers.

There are main groups in the modern periodic table of elements

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

What is the molar mass of potassium nitrate, kno3