Using the periodic table shown here answer the following questions about s. 1.what element does the symbol s stand for? 2.what is its atomic number? 3.what part of the atom does the atomic number represent? 4. what type of element is s?

1) It stands for sulfur

2) 16

3)It stands for the number of protons

4)Chalcogen

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.