“He who does not do productive work, does not eat”
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.
answer: b
Explanation:
the question is basically self explanatory.
Lia should use PDF format.
<h3>Why it’s Better to Use PDF files instead of Word?</h3>
Portable PDF file format, it's what the name implies.
Since the PDF file format became an open standard in 2008, it has been widely supported in all kinds of applications today.
Trusted PDF file format. When you create a PDF file that contains any amount of data like paragraphs, images, vector graphics, tablets, etc.
One of the main reasons for the popularity of the PDF format today is its ease of creation.
To learn more about PDF Files from given link
brainly.com/question/27665441
#SPJ4
B Collaspse of Soviet Union cause Chernobyl happened in the middle of the Cold War
