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Update Unit 1: Chemistry.md

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Grade 10/Science/SNC2DZ/Unit 1: Chemistry.md
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|Name |Symbol|Relative mass (amu)|Location|Relative Charge| |Name |Symbol|Relative mass (amu)|Location|Relative Charge|
|:--------|:-----|:------------------|:-------|:--------------| |:--------|:-----|:------------------|:-------|:--------------|
|Protons |$`p^+`$| 1 |nucleus | $`+1`$ | |Protons |$`p^+`$| $`1`$ |nucleus | $`+1`$ |
|Neutrons |$`n^0`$| 1 |nucleus | $`0`$ | |Neutrons |$`n^0`$| $`1`$ |nucleus | $`0`$ |
|Electrons|$`e^-`$|$`~\frac{1}{2000}`$|in orbit around nucleus (shell, energy level)|$`-1`$| |Electrons|$`e^-`$|$`~\dfrac{1}{2000}`$|in orbit around nucleus (shell, energy level)|$`-1`$|
## IUPAC ## IUPAC
|Letter|Definition| |Letter|Definition|
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|C|Chemistry| |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. - 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