diff --git a/Grade 10/Science/SNC2DZ/Unit 1: Chemistry.md b/Grade 10/Science/SNC2DZ/Unit 1: Chemistry.md
index 6186137..aa3af4e 100644
--- a/Grade 10/Science/SNC2DZ/Unit 1: Chemistry.md	
+++ b/Grade 10/Science/SNC2DZ/Unit 1: Chemistry.md	
@@ -14,9 +14,9 @@
 
 |Name     |Symbol|Relative mass (amu)|Location|Relative Charge|
 |:--------|:-----|:------------------|:-------|:--------------|
-|Protons  |$`p^+`$|       1          |nucleus | $`+1`$        |
-|Neutrons |$`n^0`$|     1            |nucleus | $`0`$         |
-|Electrons|$`e^-`$|$`~\frac{1}{2000}`$|in orbit around nucleus (shell, energy level)|$`-1`$|
+|Protons  |$`p^+`$|       $`1`$          |nucleus | $`+1`$        |
+|Neutrons |$`n^0`$|     $`1`$            |nucleus | $`0`$         |
+|Electrons|$`e^-`$|$`~\dfrac{1}{2000}`$|in orbit around nucleus (shell, energy level)|$`-1`$|
 
 ## IUPAC
 |Letter|Definition|
@@ -27,4 +27,20 @@
 |A|Applied|
 |C|Chemistry|
 
-- Involved in studying, varifying information (eg the periodic table -> Describes the elements -> pure susbtances made of only one kind of atom),and publishing.
\ No newline at end of file
+- Involved in studying, varifying information (eg the periodic table -> Describes the elements -> pure susbtances made of only one kind of atom),and publishing.
+
+## Trends on the Periodic Table
+- Same energy level in each period
+- Same number of valence electrons in each group
+- Across a row/period $`\rightarrow`$ more $`p^+`$ in nucleus $`\rightarrow`$ greater attraction to $`e^-`$
+- s 
+
+## Metals
+- They tend to lose electrons
+- They are shiny, ductile, malleable, conductive
+- They have a weak/loose hold on electrons
+
+## Non-Metals
+- They are dull, bad conductors - insulators
+- Tend to gain electrons
+- The have a strong hold on electrons