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.
Psychology is the science that studies the behavior and mental processes of individuals (psychism). To say that psychology is a science means that it is governed by the same laws as the scientific method which govern other sciences: it seeks objective knowledge, based on empirical facts.
Psychology is considered a science because it uses empirical reasoning and the scientific method to ask questions and examine hypotheses about human behavior and mental function.
I'm pretty sure that a country can be unstable if there were a lot of deaths, if there weren't enough kids who had educated, or if there weren't that many men and women who didn't have jobs so they couldn't send their kids to school. It can also be unstable because of debt, bad economy, and health issues.
I believe the third one. A recession is a period of temporary economic decline during which trade and industrial activity decline. Hope this helped you!