Describe electronegativity, and explain the trend of electronegativity in the periodic table.

answer - in 5 sentences

Ionic compounds are made of ions, and yet the overall charge of an ionic compound is neutral. why?

Why do scientists look for patterns in the world? a. patterns can explain observations. b. patterns never change, no matter what. c. patterns are easy for scientists to detect. d. patterns are all the same, through all time.

Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.