Explain why it is important to know the periods(row) of an element. How does this help us understand this element?

Which force is most responsible for binding together an atom's protons and neutrons? electrostatic gravitational nuclear magnetic

Ais useful when you need a simple machine to you separate two things. a. lever b. screw c. pulley d. wedge

In positive numbers less than 1, the zeros between the decimal point and non zero are significant