Assignment 10: Periodic Table
1.
a) K- potassium; 19; 39.098
b) P- phosphorus; 15; 30.974
c) N- nitrogen; 7; 14.007
2.Write the full name and symbol
a) Group 2, Period 3- magnesium; Mg
b) Group 14, Period 2- carbon; C
c) Group 18, Period 4- krypton; Kr
3. Halogen elements tend to have seven valence electrons, requiring only one addiction AP electron in order to form a full octet.
4.
a) Across a period from left to right- atomic radius decreases left to right
b) Down a group- atomic radius increases top to bottom within respected groups
5. Sulfur is larger than oxygen… Oxygen’s mass sits at 15.999, while Sulfur’s mass is at 32.066. Basically the mass of oxygen doubled.
