The periodic table of the elements lists the elements in order of increasing atomic number. Each element has its own unique square in the periodic table. Numbers in an element's square are used to tell how many protons, neutrons and electrons a typical atom of each element has. Based on the information shown, which is true about chlorine atoms?

Every Chlorine atom has an atomic mass of 35.45u and 17 protons and electrons.

Explanation:

this can all be figured out looking at the atomic number in the top left corner and the mass is found at the bottom.

explanation: it gains negative electrons, therefore becoming negatively charged. as charge cannot be created, nor destroyed, only transferred, this leaves the wool positive. now that they have opposite charges, the two items attract.

the answer is na (sodium)